"अधिवृषण": अवतरणों में अंतर

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टैग: मोबाइल संपादन मोबाइल वेब संपादन उन्नत मोबाइल संपादन
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पंक्ति 1:
{{short description|Tube that connects a testicle to a vas deferens}}
{{शीह|व्यर्थ}}
{{Infobox anatomy
Adhivrishan is the main part of vrishan.
| Name = अधिवृषण
| Latin = Epididymis
| Greek =
| Image = Epididymis-KDS.jpg
| Caption = वयस्क मानव का [[वृषण]], अधिवृषण के साथ: A. अधिवृषण शीर्ष, B. अधिवृषण का मुख्य भाग, C. अधिवृष्ण पुच्छ, तथा D. Vas deferens
| Width = 194
| Image2 = Gray1148.png
| Caption2 = The right [[testis]], exposed by laying open the [[tunica vaginalis]].
| Precursor = [[Wolffian duct]]
| System =
| Artery =
| Vein = [[Pampiniform plexus]]
| Nerve =
| Lymph =
}}
'''अधिवृषण''' या '''एपिडिडीमिस''' (epididymis) [[पुरुष जनन तंत्र]] की वह नलिका है जो [[अण्डकोश|अण्डकोशों]] (testicle) को [[शुक्रवाहिका]] (vas deferens) से जोड़ती है। अधिवृषण सभी नर सरीसृपों, पक्षियों, और स्तनधारियों में पाया जाता है। वयस्क पुरुषों में यह ६ से ७ मीटर लम्बी, पतली, पास-पास कुण्डलित एकल नलिका होती है।<ref>{{Cite book
|title=Glenn's urological surgery
|last=Kim
|first=Howard H.
|authorlink=
|last2=Goldstein
|first2=Marc
|editor1-last=Graham
|editor1-first=Sam D.
|editor2-last=Keane
|editor2-first=Thomas E.
|editor3-last=Glenn
|editor3-first=James F.
|edition=7th
|year=2010
|page=356
|chapter=Chapter 53: Anatomy of the epididymis, vas deferens, and seminal vesicle
|publisher=Lippincott Williams & Wilkins
|place=Philadelphia
|url=https://books.google.com/?id=GahMzaKgMKAC&pg=PA356
|isbn=978-0-7817-9141-0
}}</ref> connecting the [[efferent ducts]] from the rear of each testicle to its vas deferens.
 
==संरचना==
अधिवृषण के तीन भाग होते हैं-
* शीर्ष ({{lang-la|caput}}). The head of the epididymis receives [[spermatozoa]] via the [[efferent ducts]] of the [[mediastinum testis|mediastinium]] of the [[testis]]. It is characterized [[histological]]ly by a thick [[epithelium]] with long [[stereocilia]] (described below) and a little [[Smooth muscle tissue|smooth muscle]].<ref name=":0">{{Cite book|title=Color Atlas of Veterinary Histology|last=Bacha|first=William|last2=Bacha|first2=Linda|publisher=Wiley-Blackwell|year=2012|isbn=0470958510|location=|pages=226}}</ref> It is involved in absorbing fluid to make the sperm more concentrated. The concentration of the sperm here is dilute.
 
* मुख्य भाग ({{lang-la|corpus}}). This has an intermediate epithelium and smooth muscle thickness<ref name=":0" />.
 
* पुच्छ ({{lang-la|cauda}}). This has the thinnest epithelium of the three regions and the greatest quantity of smooth muscle<ref name=":0" />.