268:
the prostate gland, where an alkaline prostatic fluid is added. This addition provides the texture and odor associated with semen. The alkalinity of the prostatic fluid serves to neutralize the acidity of the female vaginal tract in order to prolong the survival of sperm in this harsh environment. Semen is now a fructose-rich, alkaline fluid containing sperm as it enters the bulbourethral glands below the prostate. The bulbourethral glands secrete a small amount of clear fluid into the urethra before the ejaculate is expelled. The functions of this fluid are not entirely known but are suggested to aid in lubricating the male urethra in preparation for the semen during ejaculation. The amount of semen produced and expelled during ejaculation corresponds to the length of time that the male is sexually aroused before ejaculation occurs. Generally, the longer the period of arousal, the larger the amount of seminal fluid.
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332:. Retrograde ejaculation empties the seminal fluid formed in the emission phase into the bladder of the male instead of expelling it through the urethra and out the tip of the penis. This results in a dry orgasm, where orgasm may still be experienced but without expulsion of semen from the ejaculatory ducts.
267:
are produced in the testes and enter the ejaculatory ducts via the vas deferens. As they pass by the seminal vesicles, a fluid rich in fructose combines with the sperm. This addition nourishes the sperm in order to keep them active and motile. Seminal fluid continues down the ejaculatory duct into
257:. The semen is stored here until ejaculation occurs. Muscles at the base of the penis contract in order to propel the seminal fluid trapped in the prostatic urethra through the penile urethra and expel it through the
301:
is an acquired or congenital pathological condition in which one or both ejaculatory ducts are obstructed. In the case that both ejaculatory ducts are obstructed, this illness presents with the symptoms of
240:
Ejaculation occurs in two stages, the emission stage and the expulsion stage. The emission stage involves the workings of several structures of the ejaculatory duct; contractions of the prostate gland, the
391:
747:
279:); there is no expulsion of ejaculate however the man still experiences orgasm. Also, paraplegics may ejaculate seminal fluid but not experience the sensation of orgasm.
261:. The ejaculate is expelled in spurts, due to the movement of the muscles propelling it. These muscle contractions are related to the sensations of orgasm for the male.
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may occur simultaneously, however they are not coupled, in that one may occur without the other. For example, a man may have a dry orgasm (termed
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at Human
Anatomy Online, SUNY Downstate Medical Center - "Lateral (A) and posterior (B) views of the bladder and associated structures."
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McQuaid, J. W.; Tanrikut, C. (2013). "Ejaculatory duct obstruction: Current diagnosis and treatment".
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Dissection of prostate showing ejaculatory ducts opening into the prostatic urethra
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passes through the prostate gland, enters the urethra and exits the body via the
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Prostate with seminal vesicles and seminal ducts, viewed from in front and above
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Practice
Committee of the American Society for Reproductive Medicine (2006).
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Rathus, S. A., Nevid, J. S., Fichner-Rathus, L., Herold, E. S. (2010).
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Nieschlag, Eberhard; Behre, Hermann M.; Nieschlag, Susan (2010-01-13).
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577:. Department of Human Ecology, University of Alberta, Edmonton, AB.
264:
214:
96:
588:"American Society of Andrology - Andrology Handbook, 2nd Edition"
729:
463:"Function of seminal vesicles and their role on male fertility"
532:. Pearsons Education Canada, Pearson Canada Inc. Toronto, ON.
189:. Each ejaculatory duct is formed by the union of the
52:, seen from the front. The anterior walls of the left
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722:: Basic Human Anatomy at Dartmouth Medical School
671:"Report on management of obstructive azoospermia"
361:Vertical section of bladder, penis and urethra
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575:HECOL 211 Human Sexuality Lecture Manual 2010
8:
469:: 251–258. December 3, 2001. Archived from
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530:Human Sexuality in a World of Diversity
445:Andrology, American Society of (1995).
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385:Median sagittal section of male pelvis
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328:may destroy these ducts resulting in
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612:Retrograde ejaculation treatments
688:10.1016/j.fertnstert.2006.08.031
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1465:Mammal male reproductive system
1142:Trabeculae of corpus spongiosum
1132:Trabeculae of corpora cavernosa
416:Excretory duct of seminal gland
185:) are paired structures in the
1460:Human male reproductive system
1:
542:Jones, Mark M. (2012-12-02).
326:benign prostatic hyperplasia
320:Benign prostatic hyperplasia
314:Benign prostatic hyperplasia
299:Ejaculatory duct obstruction
294:Ejaculatory duct obstruction
288:Ejaculatory duct obstruction
1273:Internal urethral sphincter
720:figures/chapter_34/34-3.HTM
195:duct of the seminal vesicle
1491:
1408:Posterior scrotal arteries
545:Human Reproductive Biology
467:Asian Journal of Andrology
406:
317:
291:
233:
16:Male anatomical structures
1403:Anterior scrotal arteries
1378:Internal spermatic fascia
1363:External spermatic fascia
1322:External urethral orifice
1303:External sphincter muscle
1278:Internal urethral orifice
640:10.1007/s11934-013-0340-y
159:
38:
26:
1423:Posterior scrotal nerves
1226:Internal pudendal artery
757:Male reproductive system
714:Anatomy figure: 44:03-15
197:. They pass through the
187:male reproductive system
1435:Posterior scrotal veins
1418:Anterior scrotal nerves
1246:Internal pudendal veins
910:Tubuli seminiferi recti
675:Fertility and Sterility
628:Current Urology Reports
81:Inferior vesical artery
681:(5 Suppl 1): S259-63.
409:anatomical terminology
330:retrograde ejaculation
277:retrograde ejaculation
161:Anatomical terminology
106:: ductus ejaculatorii)
102:ductus ejaculatorius (
448:Handbook of andrology
253:push fluids into the
1064:Bulbourethral glands
905:Seminiferous tubules
841:Blood–testis barrier
201:, and open into the
85:middle rectal artery
1475:Human penis anatomy
1327:Lacunae of Morgagni
1115:Suspensory ligament
988:Testicular arteries
864:Spermatocytogenesis
573:Esmail, S. (2010).
324:Surgery to correct
247:bulbourethral gland
183:ductus ejaculatorii
64:have been cut away.
46:Vesiculae seminales
1373:Cremasteric fascia
1110:Fundiform ligament
1037:Seminal colliculus
983:Rectovesical pouch
964:Pampiniform plexus
942:Superior ligaments
937:Inferior ligaments
548:. Academic Press.
407:This article uses
283:Clinical relevance
207:seminal colliculus
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1137:Corpus spongiosum
1127:Corpora cavernosa
1072:
1071:
1042:Ejaculatory ducts
1001:
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874:Spermatidogenesis
349:Lobes of prostate
336:Additional images
255:prostatic urethra
179:ejaculatory ducts
175:
174:
170:
50:ductus deferentes
1482:
1211:Arteries of bulb
1193:Tunica albuginea
1083:
1015:Seminal vesicles
1007:Accessory glands
993:Testicular veins
804:Tunica vasculosa
799:Tunica albuginea
794:Tunica vaginalis
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271:Ejaculation and
243:seminal vesicles
167:edit on Wikidata
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60:, and prostatic
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22:Ejaculatory duct
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1310:Navicular fossa
1261:Pudendal nerves
1216:Dorsal arteries
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971:Vasa deferentia
959:Spermatic cords
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851:Spermatogenesis
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708:External links
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774:Seminal tract
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594:on 2015-04-16
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1315:Lacuna magna
1293:Intermediate
1241:Vein of bulb
1236:Dorsal veins
1041:
927:Epididymides
915:Retia testes
889:Spermatozoon
869:Spermatocyte
831:Leydig cells
678:
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664:
634:(4): 291–7.
631:
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596:. Retrieved
592:the original
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493:. Springer.
489:
471:the original
466:
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270:
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251:vas deferens
239:
191:vas deferens
182:
178:
176:
130:A09.3.07.001
101:
33:Male anatomy
1181:Superficial
947:Stereocilia
816:Mediastinum
308:infertility
236:Ejaculation
230:Ejaculation
211:ejaculation
91:Identifiers
1454:Categories
598:2015-04-16
432:References
205:above the
1470:Andrology
1399:Arteries
1368:Cremaster
1288:Prostatic
1207:Arteries
879:Spermatid
783:Testicles
490:Andrology
306:and male
209:. During
193:with the
1385:Ligament
1159:Frenulum
1154:Foreskin
1078:External
1027:Prostate
976:Ampullae
932:Appendix
811:Appendix
765:Internal
697:17055837
656:12902575
648:23733548
426:Prostate
403:See also
304:aspermia
249:and the
225:Function
199:prostate
1414:Nerves
1349:Layers
1342:Scrotum
1268:Urethra
1252:Nerves
1057:Utricle
821:Lobules
790:Layers
203:urethra
118:D004543
70:Details
62:urethra
56:, left
54:ampulla
1395:Septum
1298:Spongy
1232:Veins
1198:Septum
1176:Fascia
1164:Corona
695:
654:
646:
552:
497:
273:orgasm
245:, the
76:Artery
1390:Raphe
1203:Raphe
1149:Glans
1100:Crura
1087:Penis
1052:Ducts
1047:Sinus
898:Other
826:Septa
652:S2CID
265:Sperm
215:semen
165:[
154:19325
97:Latin
1353:Skin
1186:Deep
1122:Body
1105:Bulb
1095:Root
693:PMID
644:PMID
550:ISBN
495:ISBN
177:The
142:3636
125:TA98
113:MeSH
683:doi
636:doi
149:FMA
137:TA2
104:pl.
1456::
691:.
679:86
677:.
673:.
650:.
642:.
632:14
630:.
618:^
564:^
509:^
479:^
465:.
310:.
221:.
213:,
83:,
749:e
742:t
735:v
699:.
685::
658:.
638::
601:.
558:.
503:.
451:.
411:.
181:(
169:]
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