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Synapse

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622:. The stability of long-term memory can persist for many years; nevertheless, synapses, the neurological basis of memory, are very dynamic. The formation of synaptic connections significantly depends on activity-dependent synaptic plasticity observed in various synaptic pathways. Indeed, the connection between memory formation and alterations in synaptic efficacy enables the reinforcement of neuronal interactions between neurons. As neurotransmitters activate receptors across the synaptic cleft, the connection between the two neurons is strengthened when both neurons are active at the same time, as a result of the receptor's signaling mechanisms. The strength of two connected neural pathways is thought to result in the storage of information, resulting in memory. This process of synaptic strengthening is known as 714:
diseases, synaptopathy is thought to be the inevitable end-result of an ongoing pathophysiological cascade. These diseases are identified by a gradual loss in cognitive and behavioral function and a steady loss of brain tissue. Moreover, these deteriorations have been mostly linked to the gradual build-up of protein aggregates in neurons, the composition of which may vary based on the pathology; all have the same deleterious effects on neuronal integrity. Furthermore, the high number of mutations linked to synaptic structure and function, as well as dendritic spine alterations in post-mortem tissue, has led to the association between synaptic defects and neurodevelopmental disorders, such as ASD and SCZ, characterized by abnormal behavioral or cognitive phenotypes.
334:. Opening Cl- channels tends to buffer the membrane potential, but this effect is countered when the membrane starts to depolarize, allowing more negatively charged Cl- ions to enter the cell. Consequently, it becomes more difficult to depolarize the membrane and excite the cell when Cl- channels are open. Similar effects result from the opening of K+ channels. The significance of inhibitory neurotransmitters is evident from the effects of toxins that impede their activity. For instance, strychnine binds to glycine receptors, blocking the action of glycine and leading to muscle spasms, convulsions, and death. 319:
reducing firing. Depending on their release location, the receptors they bind to, and the ionic circumstances they encounter, various transmitters can be either excitatory or inhibitory. For instance, acetylcholine can either excite or inhibit depending on the type of receptors it binds to. For example, glutamate serves as an excitatory neurotransmitter, in contrast to GABA, which acts as an inhibitory neurotransmitter. Additionally, dopamine is a neurotransmitter that exerts dual effects, displaying both excitatory and inhibitory impacts through binding to distinct receptors.
770: 114:. Synapses (at least chemical synapses) are stabilized in position by synaptic adhesion molecules (SAMs) projecting from both the pre- and post-synaptic neuron and sticking together where they overlap; SAMs may also assist in the generation and functioning of synapses. Moreover, SAMs coordinate the formation of synapses, with various types working together to achieve the remarkable specificity of synapses. In essence, SAMs function in both excitatory and inhibitory synapses, likely serving as devices for signal transmission. 375:
molecule binding, causing a momentary alteration in the membrane's permeability. Additionally, transmitter-gated channels are comparatively less sensitive to the membrane potential than voltage-gated channels, which is why they are unable to generate self-amplifying excitement on their own. However, they result in graded variations in membrane potential due to local permeability, influenced by the amount and duration of neurotransmitter released at the synapse.
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an electrical alteration in the postsynaptic cell and rapidly diffuses across the synaptic cleft. Once released, the neurotransmitter is swiftly eliminated, either by being absorbed by the nerve terminal that produced it, taken up by nearby glial cells, or broken down by specific enzymes in the synaptic cleft. Numerous Na+-dependent neurotransmitter carrier proteins recycle the neurotransmitters and enable the cells to maintain rapid rates of release.
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to environmental biochemical processes can lead to synaptic dysfunction. The synapse is the primary unit of information transfer in the nervous system, and correct synaptic contact creation during development is essential for normal brain function. In addition, several mutations have been connected to neurodevelopmental disorders, and that compromised function at different synapse locations is a hallmark of neurodegenerative diseases.
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that are capable of passing an electric current, causing voltage changes in the presynaptic cell to induce voltage changes in the postsynaptic cell. In fact, gap junctions facilitate the direct flow of electrical current without the need for neurotransmitters, as well as small molecules like calcium.
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Synapses are essential to the transmission of nervous impulses from one neuron to another, playing a key role in enabling rapid and direct communication by creating circuits. In addition, a synapse serves as a junction where both the transmission and processing of information occur, making it a vital
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Nevertheless, due to limited access to human tissue at late stages and a lack of thorough assessment of the essential components of human diseases in the available experimental animal models, it has been difficult to fully grasp the origin and role of synaptic dysfunction in neurological disorders.
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Synaptic defects are causally associated with early appearing neurological diseases, including autism spectrum disorders (ASD), schizophrenia (SCZ), and bipolar disorder (BP). On the other hand, in late-onset degenerative pathologies, such as Alzheimer's (AD), Parkinson's (PD), and Huntington's (HD)
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Synapses function as ensembles within particular brain networks to control the amount of neuronal activity, which is essential for memory, learning, and behavior. Consequently, synaptic disruptions might have negative effects. In fact, alterations in cell-intrinsic molecular systems or modifications
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Moreover, Ca2+/calmodulin (CaM)-dependent protein kinase II (CaMKII) is best recognized for its roles in the brain, particularly in the neocortex and hippocampal regions because it serves as a ubiquitous mediator of cellular Ca2+ signals. CaMKII is abundant in the nervous system, mainly concentrated
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In nerve terminals, synaptic vesicles are produced quickly to compensate for their rapid depletion during neurotransmitter release. Their biogenesis involves segregating synaptic vesicle membrane proteins from other cellular proteins and packaging those distinct proteins into vesicles of appropriate
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At chemical synapses, transmitter-gated ion channels play a vital role in rapidly converting extracellular chemical impulses into electrical signals. These channels are located in the postsynaptic cell's plasma membrane at the synapse region, and they temporarily open in response to neurotransmitter
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Neurotransmitters are tiny signal molecules stored in membrane-enclosed synaptic vesicles and released via exocytosis. Indeed, a change in electrical potential in the presynaptic cell triggers the release of these molecules. By attaching to transmitter-gated ion channels, the neurotransmitter causes
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Drugs have long been considered crucial targets for transmitter-gated ion channels. The majority of medications utilized to treat schizophrenia, anxiety, depression, and sleeplessness work at chemical synapses, and many of these pharmaceuticals function by binding to transmitter-gated channels. For
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Synapses can be classified by the type of cellular structures serving as the pre- and post-synaptic components. The vast majority of synapses in the mammalian nervous system are classical axo-dendritic synapses (axon synapsing upon a dendrite), however, a variety of other arrangements exist. These
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However, while the synaptic gap remained a theoretical construct, and was sometimes reported as a discontinuity between contiguous axonal terminations and dendrites or cell bodies, histological methods using the best light microscopes of the day could not visually resolve their separation which is
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While Ca2+/CaM binding stimulates CaMKII activity, Ca2+-independent autonomous CaMKII activity can also be produced by a number of other processes. CaMKII becomes active by autophosphorylating itself upon Ca2+/calmodulin binding. CaMKII is still active and phosphorylates itself even after Ca2+ is
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to travel directionally (from dendrites to cell body down the axon), and for these signals to then be received and carried on by post-synaptic neurons or received by effector cells. Nerve cells have long been used as models for cellular polarization, and of particular interest are the mechanisms
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process, in which these compounds are synthesized in and released from postsynaptic neuronal elements and travel back to the presynaptic terminal to act on the CB1 receptor for short-term or long-term synaptic depression, that causes a short or long lasting decrease in neurotransmitter release.
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An influx of Na+ driven by excitatory neurotransmitters opens cation channels, depolarizing the postsynaptic membrane toward the action potential threshold. In contrast, inhibitory neurotransmitters cause the postsynaptic membrane to become less depolarized by opening either Cl- or K+ channels,
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Neurotransmitters bind to ionotropic receptors on postsynaptic neurons, either causing their opening or closing. The variations in the quantities of neurotransmitters released from the presynaptic neuron may play a role in regulating the effectiveness of synaptic transmission. In fact, the
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Furthermore, psychoactive drugs could potentially target many other synaptic signalling machinery components. In fact, numerous neurotransmitters are released by Na+-driven carriers and are subsequently removed from the synaptic cleft. By inhibiting such carriers, synaptic transmission is
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strengthened as the action of the transmitter is prolonged. For example, Prozac is an antidepressant medication that works by preventing the absorption of serotonin neurotransmitter. Also, other antidepressants operate by inhibiting the reabsorption of both serotonin and norepinephrine.
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cleaved; as a result, the brain stores long-term memories using this mechanism. Nevertheless, when the CaMKII enzyme is dephosphorylated by a phosphatase enzyme, it becomes inactive, and memories are lost. Hence, CaMKII plays a vital role in both the induction and maintenance of LTP.
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located in the plasma membrane of the postsynaptic cell. The neurotransmitter may initiate an electrical response or a secondary messenger pathway that may either excite or inhibit the postsynaptic neuron. Chemical synapses can be classified according to the neurotransmitter released:
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in the synapses in the nerve cells. Indeed, CaMKII has been definitively identified as a key regulator of cognitive processes, such as learning, and neural plasticity. The first concrete experimental evidence for the long-assumed function of CaMKII in memory storage was demonstrated
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By altering the release of neurotransmitters, the plasticity of synapses can be controlled in the presynaptic cell. The postsynaptic cell can be regulated by altering the function and number of its receptors. Changes in postsynaptic signaling are most commonly associated with a
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The formation of neural circuits in nervous systems appears to heavily depend on the crucial interactions between chemical and electrical synapses. Thus these interactions govern the generation of synaptic transmission. Synaptic communication is distinct from an
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now known to be about 20 nm. It needed the electron microscope in the 1950s to show the finer structure of the synapse with its separate, parallel pre- and postsynaptic membranes and processes, and the cleft between the two.
67:, neurons are coupled bidirectionally in continuous-time to each other and are known to produce synchronous network activity in the brain. As such, signal directionality cannot always be defined across electrical synapses. 599:, which conceptualizes Alzheimer's as an imbalance between these processes. As of October 2023, studies concerning this protocol remain small and few results have been obtained within a standardized control framework. 475:
genes demonstrated behavioral and localization defects, which were rescued by expression of IMPase. This led to the conclusion that IMPase is required for the correct localization of synaptic protein components. The
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instance, some drugs like barbiturates and tranquilizers bind to GABA receptors and enhance the inhibitory effect of GABA neurotransmitter. Thus, reduced concentration of GABA enables the opening of Cl- channels.
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Mixed chemical electrical synapses are synaptic sites that feature both a gap junction and neurotransmitter release. This combination allows a signal to have both a fast component (electrical) and a slow component
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In fact, the axon can synapse onto a dendrite, onto a cell body, or onto another axon or axon terminal, as well as into the bloodstream or diffusely into the adjacent nervous tissue.
516:. The activation of GPCRs located at the presynaptic terminal, can decrease the probability of neurotransmitter release. This presynaptic depression involves activation of 1828: 378:
Recently, mechanical tension, a phenomenon never thought relevant to synapse function has been found to be required for those on hippocampal neurons to fire.
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means of communication between neurons. Neurons are specialized to pass signals to individual target cells, and synapses are the means by which they do so.
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gene were largely reversed. These results suggest that PIP2 signaling establishes polarized localization of synaptic components in living neurons.
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refer to synapse-producing and synapse-removing activities within the biochemical signalling chain. This terminology is associated with the
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Inhibitory synapse: Diminishes the probability of depolarization in postsynaptic neurons and the initiation of an action potential.
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that link the two membranes together and carry out the signaling process. In many synapses, the presynaptic part is located on an
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Excitatory synapse: Enhances the probability of depolarization in postsynaptic neurons and the initiation of an action potential.
2152:"Inositol monophosphatase regulates localization of synaptic components and behavior in the mature nervous system of C. elegans" 1713:
Sotelo C, Palay SL (February 1970). "The fine structure of the later vestibular nucleus in the rat. II. Synaptic organization".
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Perea G, Navarrete M, Araque A (August 2009). "Tripartite synapses: astrocytes process and control synaptic information".
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concentration of cytoplasmic calcium is involved in regulating the release of neurotransmitters from presynaptic neurons.
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proposed that neurons are not continuous throughout the body, yet still communicate with each other, an idea known as the
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is a chemical or electrical synapse that forms when the axon of one neuron synapses onto dendrites of the same neuron.
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Stanley EF (1992). "The calyx-type synapse of the chick ciliary ganglion as a model of fast cholinergic transmission".
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also exchange information with the synaptic neurons, responding to synaptic activity and, in turn, regulating
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Thus, the main advantage of an electrical synapse is the rapid transfer of signals from one cell to the next.
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size. Besides, it entails the endocytosis of synaptic vesicle membrane proteins from the plasma membrane.
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Strausfeld NJ, Bassemir UK (December 1983). "Cobalt-coupled neurons of a giant fibre system in Diptera".
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For technical reasons, synaptic structure and function have been historically studied at unusually large
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prevents Cl- from entering the cell, even when its concentration is much higher outside than inside. The
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to another neuron or to the target effector cell. Synapses can be chemical or electrical. In case of
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Joy MS, Nall DL, Emon B, Lee KY, Barishman A, Ahmed M, Rahman S, Selvin PR, Saif MT (2023-12-26).
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Lovinger DM (2008). "Presynaptic Modulation by Endocannabinoids". In Südhof TC, Starke K (eds.).
1887: 1773: 1350: 1074: 965: 468: 344: 327: 323: 277: 64: 3358: 3348: 3333: 3238: 3103: 2884: 2836: 2641: 2636: 2554: 2536: 2497: 2462: 2413: 2325: 2283: 2265: 2226: 2216: 2185: 2132: 2076: 2009: 1974: 1956: 1879: 1848:"A serotonergic axon-cilium synapse drives nuclear signaling to alter chromatin accessibility" 1765: 1730: 1689: 1662: 1610: 1602: 1592: 1588: 1562: 1513: 1464: 1342: 1279: 1271: 1261: 1257: 1234: 1177: 1128: 1066: 1024: 985: 944: 919: 896: 855: 529: 513: 465: 331: 295: 111: 91: 351:, axo-secretory, axo-ciliary, somato-dendritic, dendro-somatic, and somato-somatic synapses. 3325: 3288: 3283: 2631: 2544: 2528: 2489: 2452: 2444: 2403: 2393: 2356: 2317: 2273: 2257: 2208: 2175: 2167: 2122: 2114: 2066: 2001: 1964: 1948: 1869: 1859: 1757: 1722: 1652: 1644: 1552: 1544: 1503: 1495: 1454: 1446: 1334: 1224: 1216: 1167: 1159: 1118: 1110: 1058: 1016: 977: 888: 517: 505: 420: 237: 229: 209: 1020: 357: 280:, the presynaptic and postsynaptic cell membranes are connected by special channels called 3093: 3062: 3057: 2939: 2934: 2758: 1420: 481: 126: 75: 1969: 1944: 1928: 1212: 204: 3383: 3353: 3310: 3130: 3088: 3066: 2986: 2869: 2693: 2598: 2549: 2516: 2457: 2432: 2408: 2377: 2278: 2245: 2180: 2151: 2127: 2098: 1874: 1847: 1657: 1632: 1557: 1532: 1508: 1483: 1459: 1434: 1229: 1196: 1172: 1147: 1123: 1098: 892: 687: 660: 608: 533: 266: 145:
elements, and the actual term "synapse" was suggested by the English classical scholar
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Sheu SH, Upadhyayula S, Dupuy V, Pang S, Deng F, Wan J, et al. (September 2022).
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The word synapse first appeared in 1897, in the seventh edition of Michael Foster's
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Tansey EM (1997). "Not committing barbarisms: Sherrington and the synapse, 1897".
298:, in which communication between neurons occurs via indirect electric fields. An 2448: 2212: 2071: 2054: 3293: 3108: 3012: 2970: 2902: 2897: 2718: 2656: 2651: 2621: 2118: 1163: 787: 697: 539: 254: 141:. Sherrington struggled to find a good term that emphasized a union between two 90:) cell. Both the presynaptic and postsynaptic sites contain extensive arrays of 2321: 2028: 1864: 1799: 1681: 1201:
Proceedings of the National Academy of Sciences of the United States of America
1062: 3363: 3052: 2929: 2892: 2345:"Changes of synaptic structures associated with learning, memory and diseases" 1633:"Electrical synapses and their functional interactions with chemical synapses" 1054: 802: 83: 17: 2540: 2398: 2269: 1960: 1028: 989: 900: 129:. The word "synapse" was introduced in 1897 by the English neurophysiologist 3378: 2763: 2736: 1952: 1614: 1283: 1220: 618:
It is widely accepted that the synapse plays a key role in the formation of
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Tanizawa Y, Kuhara A, Inada H, Kodama E, Mizuno T, Mori I (December 2006).
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located at the presynaptic terminal, are involved in this modulation by a
446:) are molecules that have been shown to affect neuronal polarity. A gene ( 30:
This article is about synapses of the nervous system. For other uses, see
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Chemical and electrical synapses are two ways of synaptic transmission.
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that mediate different inhibitory mechanisms, including inhibition of
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Controlling the release of neurotransmitters into the synaptic cleft.
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Kimata T, Tanizawa Y, Can Y, Ikeda S, Kuhara A, Mori I (June 2012).
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Alberts B, Johnson A, Lewis J, Raff M, Roberts K, Walter P (2002).
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The chemical transmission involves several sequential processes:
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for Cl- in many neurons is quite negative, nearly equal to the
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Basic Neurochemistry: Molecular, Cellular and Medical Aspects
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underlying the polarized localization of synaptic molecules.
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Synthesizing neurotransmitters within the presynaptic neuron.
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Taoufik E, Kouroupi G, Zygogianni O, Matsas R (2018-09-05).
460:-inositol monophosphatase (IMPase), an enzyme that produces 1197:"Engineered adhesion molecules drive synapse organization" 2376:
Krugers HJ, Zhou M, Joëls M, Kindt M (October 11, 2011).
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Ceasing the activity of the released neurotransmitters.
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Binding of neurotransmitters to postsynaptic receptors.
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Neuropsychology: Clinical and Experimental Foundations
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Loading the neurotransmitters into secretory vesicles.
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Pitman RM (September 1984). "The versatile synapse".
162:), meaning "conjunction", which in turn derives from 149:, a friend of Foster. The word was derived from the 3324: 3265: 3258: 3194: 3124: 3081: 3041: 3003: 2985: 2978: 2964: 2911: 2883: 2789: 2780: 2727: 2684: 2677: 2614: 2605: 2092: 2090: 1578: 1576: 1537:
The Journal of Biophysical and Biochemical Cytology
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The Journal of Biophysical and Biochemical Cytology
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Cell Press: 881–884. 1898:University press release: 1865:10.1016/j.cell.2022.07.026 1400: 1392: 1384: 1376: 1063:10.1016/j.tins.2009.05.001 606: 488:mutants also had a mutant 480:gene encodes a homolog of 188: 178: 168: 158: 29: 3369:Olfactory receptor neuron 3033:Neurofibril/neurofilament 2304:Lynch MA (January 2004). 1589:Pearson/Benjamin Cummings 1258:Pearson/Allyn & Bacon 306:Excitatory and inhibitory 82:neuron) comes into close 2399:10.3389/fnbeh.2011.00062 1750:Journal of Neurocytology 1631:Pereda AE (April 2014). 1148:"Synaptic cell adhesion" 813:Neurotransmitter vesicle 632:N-methyl-d-aspartic acid 471:. Organisms with mutant 32:Synapse (disambiguation) 2156:Genes & Development 2029:"Synaptic Transmission" 1953:10.1073/pnas.2311995120 1583:Silverthorn DU (2007). 1416:A Greek–English Lexicon 1323:Brain Research Bulletin 1221:10.1073/pnas.2215905120 1097:Südhof TC (July 2021). 1047:Trends in Neurosciences 914:Kandel ER, ed. (2013). 739:for interactive version 663:synapses, for example: 550:, including the (GPCR) 428:signaling regulated by 147:Arthur Woollgar Verrall 3316:Neuromuscular junction 3179:III or Aδ or fast pain 2349:Brain Science Advances 2262:10.1083/jcb.130.5.1041 1531:Palay SL (July 1956). 1361:Textbook of Physiology 852:Textbook of Physiology 673:Neuromuscular junction 500:Presynaptic modulation 453:Caenorhabditis elegans 362: 259:neuromuscular junction 221: 139:Textbook of Physiology 123:Santiago Ramón y Cajal 44: 2310:Physiological Reviews 2006:10.1242/jeb.112.1.199 1858:(18): 3390–3407.e18. 1682:"Physiology, Synapse" 1407:Liddell, Henry George 1115:10.1083/jcb.202103052 808:Immunological synapse 705:Synapses and Diseases 514:synaptic transmission 411:Synaptic polarization 360: 207: 42: 3334:Meissner's corpuscle 3299:Postsynaptic density 3196:Efferent nerve fiber 3184:IV or C or slow pain 3126:Afferent nerve fiber 2952:Satellite glial cell 1543:(4 Suppl): 193–202. 823:Postsynaptic density 636:long-term depression 556:retrograde signaling 450:) was identified in 253:(often inhibitory), 249:(often excitatory), 3409:Signal transduction 3339:Merkel nerve ending 2533:10.1098/rsob.180138 2172:10.1101/gad.1497806 1945:2023PNAS..12011995J 1939:(52): e2311995120. 1549:10.1083/jcb.2.4.193 1213:2023PNAS..12015905H 875:Bennett MV (1966). 694:Schaffer collateral 668:Squid giant synapse 655:Experimental models 597:Alzheimer's disease 271:signal transduction 131:Charles Sherrington 92:molecular machinery 65:electrical synapses 3374:Photoreceptor cell 3344:Pacinian corpuscle 3275:Electrical synapse 3229:Lower motor neuron 3224:Upper motor neuron 2945:Internodal segment 2885:Connective tissues 2855:Autonomic ganglion 2488:(Suppl): S73–S77. 2390:Frontiers Media SA 1762:10.1007/BF01153345 1500:10.1083/jcb.1.1.69 1451:10.1083/jcb.1.1.47 1207:(3): e2215905120. 530:potassium channels 469:inositol phosphate 363: 328:reversal potential 324:membrane potential 278:electrical synapse 222: 74:At a synapse, the 45: 3396: 3395: 3392: 3391: 3359:Free nerve ending 3326:Sensory receptors 3254: 3253: 3169:Ib or Golgi or Aα 3077: 3076: 2960: 2959: 2837:Ramus communicans 2776: 2775: 2772: 2771: 2642:Commissural fiber 2637:Association fiber 2632:Projection fibers 1833:TeachMePhysiology 1598:978-0-8053-6851-2 1109:(7): e202103052. 950:978-0-87893-725-7 925:978-0-07-139011-8 861:978-1-4325-1085-5 722:Additional images 593:Bredesen Protocol 466:dephosphorylating 436:Phosphoinositides 421:action potentials 332:resting potential 296:ephaptic coupling 257:(e.g. vertebrate 210:neurotransmitters 182:) "together" and 112:neurotransmission 16:(Redirected from 3421: 3289:Synaptic vesicle 3284:Chemical synapse 3263: 2983: 2976: 2787: 2682: 2612: 2592: 2585: 2578: 2569: 2563: 2562: 2552: 2512: 2506: 2505: 2477: 2471: 2470: 2460: 2428: 2422: 2421: 2411: 2401: 2373: 2367: 2366: 2364: 2340: 2334: 2333: 2301: 2292: 2291: 2281: 2256:(5): 1041–1049. 2241: 2235: 2234: 2200: 2194: 2193: 2183: 2147: 2141: 2140: 2130: 2094: 2085: 2084: 2074: 2050: 2044: 2043: 2041: 2040: 2024: 2018: 2017: 1989: 1983: 1982: 1972: 1924: 1918: 1915: 1913: 1911: 1895: 1877: 1867: 1843: 1837: 1836: 1824: 1815: 1814: 1812: 1811: 1795: 1782: 1781: 1745: 1739: 1738: 1710: 1704: 1703: 1701: 1700: 1677: 1671: 1670: 1660: 1628: 1619: 1618: 1580: 1571: 1570: 1560: 1528: 1522: 1521: 1511: 1479: 1473: 1472: 1462: 1430: 1424: 1403: 1402: 1395: 1394: 1387: 1386: 1379: 1378: 1372: 1366: 1365: 1318: 1312: 1311: 1297: 1288: 1287: 1267:978-0-20534361-4 1249: 1243: 1242: 1232: 1192: 1186: 1185: 1175: 1143: 1137: 1136: 1126: 1094: 1083: 1082: 1042: 1033: 1032: 1000: 994: 993: 961: 955: 954: 936: 930: 929: 911: 905: 904: 872: 866: 865: 847: 772: 760: 748: 732: 696:synapses in the 684:in the brainstem 540:Endocannabinoids 528:, activation of 506:neurotransmitter 349:dendro-dendritic 238:neurotransmitter 230:chemical synapse 191: 190: 181: 180: 171: 170: 161: 160: 21: 3429: 3428: 3424: 3423: 3422: 3420: 3419: 3418: 3399: 3398: 3397: 3388: 3320: 3250: 3199: 3190: 3174:II or Aβ and Aγ 3129: 3120: 3073: 3063:Apical dendrite 3058:Dendritic spine 3037: 2999: 2969: 2956: 2940:Node of Ranvier 2935:Myelin incisure 2907: 2879: 2768: 2759:Oligodendrocyte 2742:Ependymal cells 2723: 2673: 2601: 2596: 2566: 2514: 2513: 2509: 2494:10.1139/y92-246 2479: 2478: 2474: 2430: 2429: 2425: 2375: 2374: 2370: 2342: 2341: 2337: 2303: 2302: 2295: 2243: 2242: 2238: 2223: 2202: 2201: 2197: 2149: 2148: 2144: 2096: 2095: 2088: 2052: 2051: 2047: 2038: 2036: 2026: 2025: 2021: 1991: 1990: 1986: 1926: 1925: 1921: 1909: 1907: 1899: 1845: 1844: 1840: 1826: 1825: 1818: 1809: 1807: 1797: 1796: 1785: 1747: 1746: 1742: 1712: 1711: 1707: 1698: 1696: 1679: 1678: 1674: 1649:10.1038/nrn3708 1630: 1629: 1622: 1599: 1591:. p. 271. 1582: 1581: 1574: 1530: 1529: 1525: 1481: 1480: 1476: 1432: 1431: 1427: 1421:Perseus Project 1373: 1369: 1320: 1319: 1315: 1299: 1298: 1291: 1268: 1251: 1250: 1246: 1194: 1193: 1189: 1145: 1144: 1140: 1096: 1095: 1086: 1044: 1043: 1036: 1002: 1001: 997: 963: 962: 958: 951: 938: 937: 933: 926: 913: 912: 908: 874: 873: 869: 862: 849: 848: 841: 837: 832: 783: 776: 773: 764: 761: 752: 749: 740: 733: 724: 707: 657: 644: 616: 611: 605: 578: 565: 502: 482:phospholipase C 413: 384: 368: 340: 308: 202: 192:) "to fasten". 127:neuron doctrine 120: 76:plasma membrane 35: 28: 23: 22: 15: 12: 11: 5: 3427: 3425: 3417: 3416: 3414:Neural synapse 3411: 3401: 3400: 3394: 3393: 3390: 3389: 3387: 3386: 3384:Taste receptor 3381: 3376: 3371: 3366: 3361: 3356: 3354:Muscle spindle 3351: 3349:Ruffini ending 3346: 3341: 3336: 3330: 3328: 3322: 3321: 3319: 3318: 3313: 3311:Ribbon synapse 3308: 3303: 3302: 3301: 3296: 3291: 3281: 3271: 3269: 3260: 3256: 3255: 3252: 3251: 3249: 3248: 3247: 3246: 3241: 3236: 3226: 3221: 3216: 3211: 3205: 3203: 3192: 3191: 3189: 3188: 3187: 3186: 3181: 3176: 3171: 3166: 3156: 3151: 3146: 3141: 3135: 3133: 3131:Sensory neuron 3122: 3121: 3119: 3118: 3117: 3116: 3106: 3101: 3099:Pseudounipolar 3096: 3091: 3085: 3083: 3079: 3078: 3075: 3074: 3072: 3071: 3070: 3069: 3067:Basal dendrite 3060: 3055: 3047: 3045: 3039: 3038: 3036: 3035: 3030: 3025: 3020: 3018:Axon terminals 3015: 3009: 3007: 3001: 3000: 2998: 2997: 2991: 2989: 2980: 2973: 2962: 2961: 2958: 2957: 2955: 2954: 2949: 2948: 2947: 2942: 2937: 2932: 2917: 2915: 2909: 2908: 2906: 2905: 2900: 2895: 2889: 2887: 2881: 2880: 2878: 2877: 2872: 2870:Nerve fascicle 2867: 2861: 2852: 2851: 2850: 2845: 2833: 2832: 2831: 2826: 2816: 2815: 2814: 2809: 2804: 2793: 2791: 2784: 2778: 2777: 2774: 2773: 2770: 2769: 2767: 2766: 2761: 2756: 2751: 2750: 2749: 2739: 2733: 2731: 2725: 2724: 2722: 2721: 2716: 2711: 2706: 2701: 2696: 2690: 2688: 2679: 2675: 2674: 2672: 2671: 2666: 2661: 2660: 2659: 2654: 2649: 2644: 2639: 2634: 2624: 2618: 2616: 2609: 2603: 2602: 2599:Nervous tissue 2597: 2595: 2594: 2587: 2580: 2572: 2565: 2564: 2507: 2472: 2443:(3): 380–394. 2423: 2368: 2335: 2293: 2236: 2221: 2195: 2142: 2086: 2045: 2019: 2000:(1): 199–224. 1984: 1919: 1917: 1916: 1838: 1816: 1783: 1740: 1715:Brain Research 1705: 1672: 1643:(4): 250–263. 1620: 1597: 1572: 1523: 1474: 1425: 1367: 1313: 1289: 1266: 1244: 1187: 1158:(4): a005694. 1138: 1084: 1034: 1015:(1): 393–418. 995: 976:(4): 495–511. 956: 949: 931: 924: 906: 887:(2): 509–539. 867: 860: 838: 836: 833: 831: 830: 825: 820: 815: 810: 805: 800: 795: 790: 784: 782: 779: 778: 777: 774: 767: 765: 762: 755: 753: 750: 743: 741: 734: 727: 723: 720: 706: 703: 702: 701: 691: 688:Ribbon synapse 685: 679: 676: 670: 656: 653: 643: 640: 615: 612: 609:Hebbian theory 607:Main article: 604: 603:Role in memory 601: 589:synaptoclastic 585:Synaptoblastic 577: 574: 564: 561: 534:vesicle fusion 504:Modulation of 501: 498: 412: 409: 408: 407: 404: 401: 398: 395: 383: 380: 367: 364: 339: 336: 316: 315: 312: 307: 304: 291: 290: 286: 274: 267:norepinephrine 240:that binds to 201: 198: 135:Michael Foster 119: 116: 49:nervous system 26: 24: 18:Neural synapse 14: 13: 10: 9: 6: 4: 3: 2: 3426: 3415: 3412: 3410: 3407: 3406: 3404: 3385: 3382: 3380: 3377: 3375: 3372: 3370: 3367: 3365: 3362: 3360: 3357: 3355: 3352: 3350: 3347: 3345: 3342: 3340: 3337: 3335: 3332: 3331: 3329: 3327: 3323: 3317: 3314: 3312: 3309: 3307: 3304: 3300: 3297: 3295: 3292: 3290: 3287: 3286: 3285: 3282: 3280: 3276: 3273: 3272: 3270: 3268: 3264: 3261: 3257: 3245: 3244:γ motorneuron 3242: 3240: 3239:β motorneuron 3237: 3235: 3234:α motorneuron 3232: 3231: 3230: 3227: 3225: 3222: 3220: 3217: 3215: 3212: 3210: 3207: 3206: 3204: 3202: 3197: 3193: 3185: 3182: 3180: 3177: 3175: 3172: 3170: 3167: 3165: 3162: 3161: 3160: 3157: 3155: 3152: 3150: 3147: 3145: 3142: 3140: 3137: 3136: 3134: 3132: 3127: 3123: 3115: 3112: 3111: 3110: 3107: 3105: 3102: 3100: 3097: 3095: 3092: 3090: 3087: 3086: 3084: 3080: 3068: 3064: 3061: 3059: 3056: 3054: 3051: 3050: 3049: 3048: 3046: 3044: 3040: 3034: 3031: 3029: 3026: 3024: 3021: 3019: 3016: 3014: 3011: 3010: 3008: 3006: 3002: 2996: 2993: 2992: 2990: 2988: 2984: 2981: 2977: 2974: 2972: 2967: 2963: 2953: 2950: 2946: 2943: 2941: 2938: 2936: 2933: 2931: 2928: 2927: 2926: 2922: 2919: 2918: 2916: 2914: 2910: 2904: 2901: 2899: 2896: 2894: 2891: 2890: 2888: 2886: 2882: 2876: 2873: 2871: 2868: 2865: 2862: 2860: 2856: 2853: 2849: 2846: 2844: 2841: 2840: 2839: 2838: 2834: 2830: 2827: 2825: 2822: 2821: 2820: 2817: 2813: 2810: 2808: 2805: 2803: 2800: 2799: 2798: 2795: 2794: 2792: 2788: 2785: 2783: 2779: 2765: 2762: 2760: 2757: 2755: 2752: 2748: 2745: 2744: 2743: 2740: 2738: 2735: 2734: 2732: 2730: 2726: 2720: 2717: 2715: 2712: 2710: 2707: 2705: 2702: 2700: 2697: 2695: 2692: 2691: 2689: 2687: 2683: 2680: 2676: 2670: 2667: 2665: 2662: 2658: 2655: 2653: 2650: 2648: 2645: 2643: 2640: 2638: 2635: 2633: 2630: 2629: 2628: 2625: 2623: 2620: 2619: 2617: 2613: 2610: 2608: 2604: 2600: 2593: 2588: 2586: 2581: 2579: 2574: 2573: 2570: 2560: 2556: 2551: 2546: 2542: 2538: 2534: 2530: 2527:(9): 180138. 2526: 2522: 2518: 2511: 2508: 2503: 2499: 2495: 2491: 2487: 2483: 2476: 2473: 2468: 2464: 2459: 2454: 2450: 2446: 2442: 2438: 2434: 2427: 2424: 2419: 2415: 2410: 2405: 2400: 2395: 2391: 2387: 2383: 2379: 2372: 2369: 2363: 2358: 2355:(2): 99–117. 2354: 2350: 2346: 2339: 2336: 2331: 2327: 2323: 2319: 2316:(1): 87–136. 2315: 2311: 2307: 2300: 2298: 2294: 2289: 2285: 2280: 2275: 2271: 2267: 2263: 2259: 2255: 2251: 2247: 2240: 2237: 2232: 2228: 2224: 2222:9783540748052 2218: 2214: 2210: 2206: 2199: 2196: 2191: 2187: 2182: 2177: 2173: 2169: 2166:: 3296–3310. 2165: 2161: 2157: 2153: 2146: 2143: 2138: 2134: 2129: 2124: 2120: 2116: 2112: 2108: 2104: 2100: 2093: 2091: 2087: 2082: 2078: 2073: 2068: 2064: 2060: 2056: 2049: 2046: 2034: 2030: 2023: 2020: 2015: 2011: 2007: 2003: 1999: 1995: 1988: 1985: 1980: 1976: 1971: 1966: 1962: 1958: 1954: 1950: 1946: 1942: 1938: 1934: 1930: 1923: 1920: 1906: 1902: 1897: 1896: 1893: 1889: 1885: 1881: 1876: 1871: 1866: 1861: 1857: 1853: 1849: 1842: 1839: 1834: 1830: 1823: 1821: 1817: 1805: 1801: 1794: 1792: 1790: 1788: 1784: 1779: 1775: 1771: 1767: 1763: 1759: 1756:(6): 971–91. 1755: 1751: 1744: 1741: 1736: 1732: 1728: 1724: 1721:(1): 93–115. 1720: 1716: 1709: 1706: 1695: 1691: 1687: 1683: 1676: 1673: 1668: 1664: 1659: 1654: 1650: 1646: 1642: 1638: 1634: 1627: 1625: 1621: 1616: 1612: 1608: 1604: 1600: 1594: 1590: 1586: 1579: 1577: 1573: 1568: 1564: 1559: 1554: 1550: 1546: 1542: 1538: 1534: 1527: 1524: 1519: 1515: 1510: 1505: 1501: 1497: 1493: 1489: 1485: 1478: 1475: 1470: 1466: 1461: 1456: 1452: 1448: 1444: 1440: 1436: 1429: 1426: 1422: 1418: 1417: 1412: 1411:Scott, Robert 1408: 1404: 1396: 1388: 1380: 1371: 1368: 1364: 1362: 1356: 1352: 1348: 1344: 1340: 1336: 1332: 1328: 1324: 1317: 1314: 1309: 1308: 1303: 1296: 1294: 1290: 1285: 1281: 1277: 1273: 1269: 1263: 1259: 1255: 1248: 1245: 1240: 1236: 1231: 1226: 1222: 1218: 1214: 1210: 1206: 1202: 1198: 1191: 1188: 1183: 1179: 1174: 1169: 1165: 1161: 1157: 1153: 1149: 1142: 1139: 1134: 1130: 1125: 1120: 1116: 1112: 1108: 1104: 1100: 1093: 1091: 1089: 1085: 1080: 1076: 1072: 1068: 1064: 1060: 1056: 1052: 1048: 1041: 1039: 1035: 1030: 1026: 1022: 1018: 1014: 1010: 1006: 999: 996: 991: 987: 983: 979: 975: 971: 967: 960: 957: 952: 946: 942: 935: 932: 927: 921: 917: 910: 907: 902: 898: 894: 890: 886: 882: 878: 871: 868: 863: 857: 853: 846: 844: 840: 834: 829: 826: 824: 821: 819: 816: 814: 811: 809: 806: 804: 801: 799: 796: 794: 791: 789: 786: 785: 780: 771: 766: 759: 754: 747: 742: 738: 731: 726: 721: 719: 715: 711: 704: 699: 695: 692: 690:in the retina 689: 686: 683: 682:Calyx of Held 680: 677: 674: 671: 669: 666: 665: 664: 662: 654: 652: 648: 641: 639: 637: 633: 627: 625: 621: 613: 610: 602: 600: 598: 595:for treating 594: 590: 586: 582: 575: 573: 569: 562: 560: 557: 553: 549: 545: 541: 537: 535: 531: 527: 523: 519: 515: 511: 507: 499: 497: 495: 491: 487: 483: 479: 474: 470: 467: 463: 459: 456:that encodes 455: 454: 449: 445: 441: 437: 433: 431: 427: 422: 418: 417:cell polarity 410: 405: 402: 399: 396: 393: 392: 391: 388: 381: 379: 376: 372: 365: 359: 355: 352: 350: 346: 337: 335: 333: 329: 325: 320: 313: 310: 309: 305: 303: 301: 297: 287: 283: 282:gap junctions 279: 275: 272: 268: 264: 260: 256: 252: 248: 247:glutamatergic 243: 239: 235: 231: 227: 226: 225: 219: 218:glutamic acid 215: 214:acetylcholine 211: 206: 199: 197: 193: 185: 175: 165: 155: 152: 148: 144: 140: 136: 132: 128: 124: 117: 115: 113: 109: 105: 101: 97: 93: 89: 85: 81: 77: 72: 68: 66: 62: 58: 54: 50: 41: 37: 33: 19: 3279:Gap junction 3266: 3201:Motor neuron 2995:Axon hillock 2971:nerve fibers 2925:Schwann cell 2835: 2818: 2796: 2714:Medium spiny 2627:White matter 2615:Tissue Types 2524: 2521:Open Biology 2520: 2510: 2485: 2481: 2475: 2440: 2436: 2426: 2385: 2381: 2371: 2352: 2348: 2338: 2313: 2309: 2253: 2249: 2239: 2204: 2198: 2159: 2155: 2145: 2106: 2102: 2062: 2058: 2048: 2037:. 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Boston: 1055:Cell Press 835:References 803:Exocytosis 576:Biogenesis 522:G-proteins 345:axo-axonic 338:Interfaces 263:adrenergic 108:Astrocytes 84:apposition 3379:Hair cell 2913:Neuroglia 2875:Funiculus 2764:Microglia 2737:Astrocyte 2694:Pyramidal 2647:Lemniscus 2541:2046-2441 2270:0021-9525 1961:0027-8424 1892:251958800 1385:συνάπτειν 1302:"synapse" 1029:0147-006X 990:0896-6273 901:0077-8923 548:receptors 536:process. 251:GABAergic 242:receptors 169:συνάπτειν 164:synaptein 3164:Ia or Aα 3094:Unipolar 3043:Dendrite 3028:Axolemma 3023:Axoplasm 2807:Ganglion 2747:Tanycyte 2699:Purkinje 2686:Neuronal 2669:Meninges 2664:Neuropil 2559:30185603 2467:31394063 2418:22013419 2330:14715912 2231:18064422 2190:17158747 2137:22446320 2103:Genetics 2081:16364893 1979:38113266 1970:10756289 1884:36055200 1778:19764983 1694:30252303 1667:24619342 1615:62742632 1567:13357542 1518:14381429 1469:14381427 1355:40333336 1331:Elsevier 1284:61131869 1239:36638214 1182:22278667 1133:34086051 1079:16355401 1071:19615761 818:Neurexin 781:See also 544:neuronal 462:inositol 172:), from 154:synapsis 143:separate 100:dendrite 3306:Autapse 3267:Synapse 3114:Renshaw 3089:Bipolar 2966:Neurons 2819:Ventral 2790:General 2704:Granule 2550:6170506 2502:1338300 2458:6688632 2409:3190121 2288:7544795 2279:2120557 2181:1686606 2128:3374314 2014:6150966 1941:Bibcode 1875:9789380 1770:6420522 1735:4313893 1658:4091911 1558:2229686 1509:2223597 1460:2223594 1419:at the 1377:σύναψις 1347:9323432 1230:9934208 1209:Bibcode 1173:3312681 1124:8186004 793:Autapse 300:autapse 261:), and 184:haptein 159:σύναψις 118:History 53:synapse 47:In the 3159:fibers 2797:Dorsal 2557:  2547:  2539:  2500:  2465:  2455:  2437:Neuron 2416:  2406:  2392:: 62. 2328:  2286:  2276:  2268:  2229:  2219:  2188:  2178:  2162:(23). 2135:  2125:  2079:  2059:Neuron 2012:  1977:  1967:  1959:  1890:  1882:  1872:  1776:  1768:  1733:  1692:  1665:  1655:  1613:  1605:  1595:  1565:  1555:  1516:  1506:  1467:  1457:  1401:ἅπτειν 1353:  1345:  1282:  1274:  1264:  1237:  1227:  1180:  1170:  1131:  1121:  1077:  1069:  1027:  988:  970:Neuron 947:  922:  899:  858:  620:memory 520:-type 430:IMPase 276:In an 189:ἅπτειν 61:signal 57:neuron 3082:Types 2979:Parts 2848:White 2829:Ramus 2812:Ramus 2729:Glial 2109:(2). 1888:S2CID 1774:S2CID 1351:S2CID 1329:(3). 1075:S2CID 1053:(8). 661:model 494:ttx-7 490:egl-8 486:ttx-7 478:egl-8 473:ttx-7 448:ttx-7 228:In a 212:like 200:Types 151:Greek 3005:Axon 2987:Soma 2843:Gray 2824:Root 2802:Root 2555:PMID 2537:ISSN 2498:PMID 2463:PMID 2414:PMID 2326:PMID 2284:PMID 2266:ISSN 2227:PMID 2217:ISBN 2186:PMID 2133:PMID 2077:PMID 2010:PMID 1975:PMID 1957:ISSN 1912:2022 1880:PMID 1852:Cell 1766:PMID 1731:PMID 1690:PMID 1663:PMID 1611:OCLC 1603:LCCN 1593:ISBN 1563:PMID 1514:PMID 1465:PMID 1343:PMID 1280:OCLC 1272:LCCN 1262:ISBN 1235:PMID 1178:PMID 1129:PMID 1067:PMID 1025:ISSN 986:ISSN 945:ISBN 920:ISBN 897:ISSN 856:ISBN 587:and 518:Gi/o 444:PIP3 426:PIP2 322:The 104:soma 96:axon 51:, a 3219:SVE 3214:GVE 3209:GSE 3154:SVA 3149:SSA 3144:GVA 3139:GSA 2782:PNS 2607:CNS 2545:PMC 2529:doi 2490:doi 2453:PMC 2445:doi 2441:103 2404:PMC 2394:doi 2357:doi 2318:doi 2274:PMC 2258:doi 2254:130 2209:doi 2176:PMC 2168:doi 2123:PMC 2115:doi 2107:191 2067:doi 2002:doi 1998:112 1965:PMC 1949:doi 1937:120 1870:PMC 1860:doi 1856:185 1758:doi 1723:doi 1653:PMC 1645:doi 1553:PMC 1545:doi 1504:PMC 1496:doi 1455:PMC 1447:doi 1393:σύν 1335:doi 1225:PMC 1217:doi 1205:120 1168:PMC 1160:doi 1119:PMC 1111:doi 1107:220 1059:doi 1017:doi 978:doi 889:doi 885:137 464:by 458:myo 440:PIP 216:or 179:σύν 174:syn 137:'s 133:in 102:or 3405:: 2923:: 2553:. 2543:. 2535:. 2523:. 2519:. 2496:. 2486:70 2484:. 2461:. 2451:. 2439:. 2435:. 2412:. 2402:. 2388:. 2384:. 2380:. 2351:. 2347:. 2324:. 2314:84 2312:. 2308:. 2296:^ 2282:. 2272:. 2264:. 2252:. 2248:. 2225:. 2215:. 2184:. 2174:. 2160:20 2158:. 2154:. 2131:. 2121:. 2105:. 2101:. 2089:^ 2075:. 2063:48 2061:. 2057:. 2008:. 1996:. 1973:. 1963:. 1955:. 1947:. 1935:. 1931:. 1903:. 1886:. 1878:. 1868:. 1854:. 1850:. 1831:. 1819:^ 1802:. 1786:^ 1772:. 1764:. 1754:12 1752:. 1729:. 1719:18 1717:. 1684:. 1661:. 1651:. 1641:15 1639:. 1635:. 1623:^ 1609:. 1601:. 1575:^ 1561:. 1551:. 1539:. 1535:. 1512:. 1502:. 1490:. 1486:. 1463:. 1453:. 1441:. 1437:. 1413:; 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Index

Neural synapse
Synapse (disambiguation)

nervous system
neuron
signal
electrical synapses
plasma membrane
apposition
molecular machinery
axon
dendrite
soma
Astrocytes
neurotransmission
Santiago Ramón y Cajal
neuron doctrine
Charles Sherrington
Michael Foster
Arthur Woollgar Verrall
Greek

neurotransmitters
acetylcholine
glutamic acid
chemical synapse
voltage-gated calcium channels
neurotransmitter
receptors
glutamatergic

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