The efferent ducts (or efferent ductules or ductuli efferentes or ductus efferentes or vasa efferentia) connect the rete testis with the initial section of the epididymis.[1]
Efferent ducts
The location of the efferent ducts within an adult human testicle
The efferent ducts. (Labeled as Vasa Efferentia as top center.)
There are two basic designs for efferent ductule structure:
a) multiple entries into the epididymis, as seen in most large mammals. In humans and other large mammals, there are approximately 15 to 20 efferent ducts, which also occupy nearly one third of the head of the epididymis.
b) single entry, as seen in most small animals such as rodents, where by the 3–6 ductules merge into a single small ductule prior to entering the epididymis.[citation needed]
The ductuli are unilaminar and composed of columnar ciliated and non-ciliated (absorptive) cells. The ciliated cells serve to stir the luminal fluids, possibly to help ensure homogeneous absorption of water from the fluid produced by the testis, which results in an increase in the concentration of luminal sperm. The epithelium is surrounded by a band of smooth muscle that helps to propel the sperm toward the epididymis.
Additional images
External links
- Comparative Organology at University of California, Davis – "Mammal, testis overview"
Anatomy photo:36:10-0100 at the SUNY Downstate Medical Center – "Inguinal Region, Scrotum and Testes: Reflection of the Head of the Epididymis"
Histology image: 16903loa – Histology Learning System at Boston University
Hess RA 2018. Efferent ductules: structure and function. Encyclopedia of Reproduction. Skinner MK. San Diego, Academic Press: Elsevier. 1: 270-278.
January 16, 2023
efferent, ducts, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, news, newspapers, books, scholar, jstor, september,. This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Efferent ducts news newspapers books scholar JSTOR September 2018 Learn how and when to remove this template message The efferent ducts or efferent ductules or ductuli efferentes or ductus efferentes or vasa efferentia connect the rete testis with the initial section of the epididymis 1 Efferent ductsThe location of the efferent ducts within an adult human testicleThe efferent ducts Labeled as Vasa Efferentia as top center DetailsPrecursorExcretory mesonephric tubulesIdentifiersLatinDuctus efferentes testisAnatomical terminology edit on Wikidata There are two basic designs for efferent ductule structure a multiple entries into the epididymis as seen in most large mammals In humans and other large mammals there are approximately 15 to 20 efferent ducts which also occupy nearly one third of the head of the epididymis b single entry as seen in most small animals such as rodents where by the 3 6 ductules merge into a single small ductule prior to entering the epididymis citation needed The ductuli are unilaminar and composed of columnar ciliated and non ciliated absorptive cells The ciliated cells serve to stir the luminal fluids possibly to help ensure homogeneous absorption of water from the fluid produced by the testis which results in an increase in the concentration of luminal sperm The epithelium is surrounded by a band of smooth muscle that helps to propel the sperm toward the epididymis Additional images Edit External links EditAnatomy photo Reproductive mammal testis0 testis4 Comparative Organology at University of California Davis Mammal testis overview Anatomy photo 36 10 0100 at the SUNY Downstate Medical Center Inguinal Region Scrotum and Testes Reflection of the Head of the Epididymis Histology image 16903loa Histology Learning System at Boston University Diagram Quiz cancer gov 1 References Edit Hess 2018 Hess RA 2018 Efferent ductules structure and function Encyclopedia of Reproduction Skinner MK San Diego Academic Press Elsevier 1 270 278 Retrieved from https en wikipedia org w index php title Efferent ducts amp oldid 1065101847, wikipedia, wiki, book, books, library,
