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==Adult Epididymis Histology== | |||
Ductus epididymidis (human about 6 m long) is lined by a very tall pseudostratified columnar epithelium. | |||
* principal cells - have long stereo cilia. | |||
* middle segment - site of final functional maturation of the spermatozoa. | |||
* terminal segment - site of storage of the mature spermatozoa. | |||
Anatomically the epididymis consists of 3 regions: | |||
* '''body''' or central portion. | |||
* '''head''' (globus major) upper enlarged extremity. | |||
* '''tail''' (globus minor) lower pointed extremity, continuous with the ductus deferens (vas deferens). | |||
The head is intimately connected with the upper end of the testis by means of the efferent ductules of the gland; the tail is connected with the lower end by cellular tissue, and a reflection of the tunica vaginalis (tunica vaginalis propria testis) the serous covering of the testis. | |||
The lateral surface, head and tail of the epididymis are free and covered by the serous membrane; the body is also completely invested by it, excepting along its posterior border; while between the body and the testis is a pouch, named the sinus of the epididymis (digital fossa). The epididymis is connected to the back of the testis by a fold of the serous membrane. | |||
{{Testis Histology}} | {{Testis Histology}} | ||
{{Template:Blue Histology}} | |||
Testis_histology_014.jpg | Testis_histology_014.jpg | ||
Epididymis_H&E_reproductive_system,_male,_ductulus_efferens,_ductus_epididymidis_x20.jpg | Epididymis_H&E_reproductive_system,_male,_ductulus_efferens,_ductus_epididymidis_x20.jpg | ||
[[Category:Genital]] [[Category:Histology]] [[Category:Testis]] [[Category:Spermatozoa]] | [[Category:Genital]] [[Category:Histology]] [[Category:Testis]] [[Category:Spermatozoa]] |
Latest revision as of 14:06, 17 June 2012
Adult Epididymis Histology
Ductus epididymidis (human about 6 m long) is lined by a very tall pseudostratified columnar epithelium.
- principal cells - have long stereo cilia.
- middle segment - site of final functional maturation of the spermatozoa.
- terminal segment - site of storage of the mature spermatozoa.
Anatomically the epididymis consists of 3 regions:
- body or central portion.
- head (globus major) upper enlarged extremity.
- tail (globus minor) lower pointed extremity, continuous with the ductus deferens (vas deferens).
The head is intimately connected with the upper end of the testis by means of the efferent ductules of the gland; the tail is connected with the lower end by cellular tissue, and a reflection of the tunica vaginalis (tunica vaginalis propria testis) the serous covering of the testis.
The lateral surface, head and tail of the epididymis are free and covered by the serous membrane; the body is also completely invested by it, excepting along its posterior border; while between the body and the testis is a pouch, named the sinus of the epididymis (digital fossa). The epididymis is connected to the back of the testis by a fold of the serous membrane.
Testis Histology Links: Testis Development | Spermatozoa Development | Histology
- Human (young): overview labeled | overview unlabeled | convoluted seminiferous tubules x10 | x40 | x40 | tunica albuginea x20
- Human (adult): overview x2 | convoluted seminiferous tubules labeled | x10 | x20 | x40 | x40 | epididymis ductulus efferens | ductus epididymidis | epithelium | overview x4 | x10 | x20 | x40 | ductus deferens labeled overview | epithelium | overview x2 | x10 | x40
- Human Stage 22: Testis - labeled overview | Testis - unlabeled overview | Testis - unlabeled detail | Testis - labeled detail | testis | Carnegie stage 22 | Movie - Urogenital stage 22
- Mouse: postnatal epididymis | 14 days postnatal | 33 days postnatal | 45 days postnatal | 2 months postnatal
Spermatozoa Development (expand to see terms) | ||
---|---|---|
Note there are additional glossaries associated with genital, spermatozoa, oocyte and renal.
See also: Spermatozoa Terms collapse table
|
Links: Histology | Histology Stains | Blue Histology images copyright Lutz Slomianka 1998-2009. The literary and artistic works on the original Blue Histology website may be reproduced, adapted, published and distributed for non-commercial purposes. See also the page Histology Stains.
Cite this page: Hill, M.A. (2024, April 18) Embryology Testis histology 014.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Testis_histology_014.jpg
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
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