Prostatic utricle
| Prostatic utricle | |
|---|---|
Vesiculae seminales and ampullæ of ductus deferentes, seen from the front.
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The male urethra laid open on its anterior (upper) surface.
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| Details | |
| Latin | Utriculus prostaticus, utriculus masculinus, vagina masculina, sinus pocularis |
| Precursor | Müllerian duct |
| Identifiers | |
| Dorlands /Elsevier |
u_04/12841383 |
| TA | Lua error in Module:Wikidata at line 744: attempt to index field 'wikibase' (a nil value). |
| TH | {{#property:P1694}} |
| TE | {{#property:P1693}} |
| FMA | {{#property:P1402}} |
| Anatomical terminology
[[[d:Lua error in Module:Wikidata at line 863: attempt to index field 'wikibase' (a nil value).|edit on Wikidata]]]
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The prostatic utricle (Latin for "pouch of the prostate") is a small indentation in the prostatic urethra, at the apex of the urethral crest, on the seminal colliculus (verumontanum), laterally flanked by openings of the ejaculatory ducts. It is also known as the vagina masculina or (in older literature) vesicula prostatica.[1]
Structure
It is often described as "blind", meaning that it is a duct that does not lead to any other structures.[citation needed]
It can sometimes be enlarged.[2][3]
Function
The prostatic utricle is important, primarily, because it is the homologue of the uterus and vagina, usually described as derived from the paramesonephric duct,[4] although this is occasionally disputed.[5]
In 1905 Robert William Taylor stated the function of the utricle thusly: "In coitus it so contracts that it draws upon the openings of the ejaculatory ducts, and thus renders them so patulous that the semen readily passes through."[6]
See also
References
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<references />, or <references group="..." />External links
- Anatomy photo:44:05-0204 at the SUNY Downstate Medical Center—"The Male Pelvis: The Prostate Gland"
- pelvis at The Anatomy Lesson by Wesley Norman (Georgetown University) (malebladder)
- figures/chapter_34/34-3.HTM — Basic Human Anatomy at Dartmouth Medical School
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- ↑ R. W. Taylor. "A practical treatise on sexual disorders of the male and female". New York and Philadelphia, 1897; 3rd edition, 1905. P. 48
