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256:; and behind the anterior root is an oval depression, forming part of the mandibular fossa, for the reception of the condyle of the mandible. The mandibular fossa (glenoid fossa) is bounded, in front, by the articular tubercle; behind, by the tympanic part of the bone, which separates it from the external acoustic meatus; it is divided into two parts by a narrow slit, the petrotympanic fissure (
194:. This process is at first directed lateralward, its two surfaces looking upward and downward; it then appears as if twisted inward upon itself, and runs forward, its surfaces now looking medialward and lateralward. The superior border is long, thin, and sharp, and serves for the attachment of the temporal fascia; the inferior, short, thick, and arched, has attached to it some fibers of the
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268:. Behind this part of the fossa is a small conical eminence; this is the representative of a prominent tubercle which, in some mammals, descends behind the condyle of the mandible, and prevents its backward displacement. The posterior part of the mandibular fossa, formed by the
29:
185:, and limits the origin of the temporalis muscle. The boundary between the squamous part and the mastoid portion of the bone, as indicated by traces of the original suture, lies about 1 cm. below this line.
229:; this area is separated from the outer surface of the squamous part by a ridge which is continuous behind with the anterior root of the zygomatic process, and in front, in the articulated skull, with the
210:. The posterior end is connected to the squamous part by two roots, the anterior and posterior roots. The posterior root, a prolongation of the upper border, is strongly marked; it runs backward above the
214:, and is continuous with the temporal line. The anterior root, continuous with the lower border, is short but broad and strong; it is directed medialward and ends in a rounded eminence, the
318:
of the squamous part is concave; it presents depressions corresponding to the convolutions of the temporal lobe of the brain, and grooves for the branches of the middle
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border is thick, serrated, and bevelled at the expense of the inner table above and of the outer below, for articulation with the great wing of the
338:, forming with it the squamosal suture. Posteriorly, the superior border forms an angle, the parietal notch, with the mastoid portion of the bone.
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225:, and in the fresh state is covered with cartilage. In front of the articular tubercle is a small triangular area which assists in forming the
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307:), separated from the anterior edge of the petrotympanic fissure by a thin scale of bone and situated on the lateral side of the
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At the junction of the anterior root with the zygomatic process is a projection for the attachment of the
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and the posterior root of the zygomatic process is the area called the suprameatal triangle (Macewen), or
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is thin, and bevelled at the expense of the internal table, so as to overlap the squamous border of the
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Knowledge (XXG) articles incorporating text from the 20th edition of Gray's
Anatomy (1918)
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Projecting from the lower part of the squamous part is a long, arched process, the
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of the bone, is non-articular, and sometimes lodges a portion of the
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52:. Outer surface. (Squamous part is visible at top left.)
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Front and upper part of the sides of the skull base
169:; on its hinder part is a vertical groove for the
74:pars squamosa ossis temporalis; squama temporalis
1055:in petrous part, but not part of temporal bone)
221:This tubercle forms the front boundary of the
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145:, and is scale-like, thin, and translucent.
295:, and transmits the tympanic branch of the
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291:; it lodges the anterior process of the
141:, forms the front and upper part of the
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303:nerve passes through a canal (canal of
406:This article incorporates text in the
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433:at the SUNY Downstate Medical Center
237:. Between the posterior wall of the
198:. The lateral surface is convex and
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560:Internal occipital protuberance
506:External occipital protuberance
161:; it affords attachment to the
135:squamous part of temporal bone
22:Squamous part of temporal bone
1:
1125:Posterior clinoid processes
570:Groove for transverse sinus
414:of the 20th edition of
264:, and articulates with the
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1521:Bones of the head and neck
254:temporomandibular ligament
297:internal maxillary artery
233:on the great wing of the
218:(eminentia articularis).
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41:
26:
1251:Anterior clinoid process
1246:Superior orbital fissure
992:Internal auditory meatus
838:Fossa for lacrimal gland
565:Internal occipital crest
516:External occipital crest
431:Anatomy photo:22:os-0406
239:external acoustic meatus
212:external auditory meatus
165:, and forms part of the
117:Anatomical terms of bone
1228:Sulcus of auditory tube
266:condyle of the mandible
36:at birth. Inner aspect.
1142:Middle clinoid process
171:middle temporal artery
1419:Superior nasal concha
899:Petrotympanic fissure
281:petrotympanic fissure
173:. A curved line, the
1414:Supreme nasal concha
1046:Petrosquamous suture
1002:Stylomastoid foramen
889:Suprameatal triangle
781:Supraorbital foramen
1429:Middle nasal concha
1382:Perpendicular plate
1223:Infratemporal crest
764:Superciliary arches
642:Pharyngeal tubercle
231:infratemporal crest
227:infratemporal fossa
1457:ethmoidal foramina
1375:Olfactory foramina
1336:Sphenoidal conchae
1173:Sphenoidal sinuses
1165:Sphenoidal lingula
884:Articular tubercle
555:Cruciform eminence
378:Squama temporalis
216:articular tubercle
179:supramastoid crest
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1170:Anterior surface:
1137:Chiasmatic groove
1120:Hypophysial fossa
1115:Tuberculum sellae
1102:Superior surface:
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1080:
1073:Suprameatal spine
1029:Inferior tympanic
997:Cochlear aqueduct
904:Zygomatic process
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798:Zygomatic process
697:Parietal eminence
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607:Hypoglossal canal
390:Squama temporalis
366:Squama temporalis
353:Additional Images
320:meningeal vessels
258:Glaserian fissure
191:zygomatic process
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1406:Uncinate process
1365:Cribriform plate
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1147:Petrosal process
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1012:Subarcuate fossa
942:Occipital groove
894:Mandibular fossa
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853:Frontonasal duct
754:Frontal eminence
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707:Parietal foramen
622:Jugular tubercle
526:Suprainiac fossa
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316:internal surface
223:mandibular fossa
202:; the medial is
123:edit on Wikidata
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343:antero-inferior
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289:tympanic cavity
283:leads into the
247:tympanic antrum
163:temporal muscle
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139:temporal squama
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301:chorda tympani
208:zygomatic bone
167:temporal fossa
157:is smooth and
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937:Mastoid notch
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408:public domain
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336:parietal bone
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309:auditory tube
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1370:Crista galli
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980:Facial canal
967:Petrous part
914:Mastoid part
825:Orbital part
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634:Basilar part
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521:Nuchal lines
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468:Neurocranium
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86:A02.1.06.061
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1256:Optic canal
1238:Small wings
1183:Great wings
63:Identifiers
1510:Categories
1024:canaliculi
786:Brow ridge
396:References
285:middle ear
1462:Posterior
1444:Labyrinth
1281:Pterygoid
1268:processes
1266:Pterygoid
673:Opisthion
538:Occipital
480:Occipital
262:cartilage
1467:Anterior
1391:Surfaces
1286:Scaphoid
1211:Spinosum
1196:Rotundum
1191:foramina
1095:Surfaces
1087:Sphenoid
1053:ossicles
867:Temporal
803:internal
776:foramina
769:Glabella
759:external
689:Parietal
550:internal
497:external
412:page 139
347:sphenoid
235:sphenoid
196:masseter
149:Surfaces
1500:Anatomy
1350:Ethmoid
1315:Hamulus
1298:Lateral
1206:Vesalii
1051:(note:
1034:Mastoid
732:Frontal
612:jugular
590:Condyle
470:of the
326:Borders
305:Huguier
293:malleus
204:concave
58:Details
1486:Portal
1358:Plates
1303:Medial
1276:fossae
1152:Clivus
1007:fossae
985:Hiatus
956:Aditus
668:Basion
647:Clivus
543:Nuchal
533:planes
420:(1918)
299:. The
183:fascia
159:convex
1324:Other
1218:Spine
1201:Ovale
656:Other
502:Inion
472:skull
410:from
177:, or
137:, or
121:[
110:52883
69:Latin
48:Left
1331:Body
341:The
330:The
314:The
279:The
153:Its
133:The
81:TA98
287:or
105:FMA
98:702
93:TA2
1512::
349:.
322:.
276:.
249:.
1488::
958:)
954:(
933:)
929:(
504:/
460:e
453:t
446:v
125:]
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