This article is about the structure in the testis. For other usage of "efferent duct", see Efferent (disambiguation) and Duct (disambiguation).
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Efferent ducts
The location of the efferent ducts within an adult human testicle
Details
Precursor
Excretory mesonephric tubules
Identifiers
Latin
ductus efferentes testis
FMA
19081
Anatomical terminology
[edit on Wikidata]
The efferent ducts (also efferent ductules, ductuli efferentes, ductus efferentes, or vasa efferentia) connect the rete testis with the initial section of the epididymis.[1]
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, whereby the 3–6 ductules merge into a single small ductule before 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 increases the concentration of luminal sperm. The epithelium is surrounded by a band of smooth muscle that helps to propel the sperm toward the epididymis.
The efferentducts (also efferent ductules, ductuli efferentes, ductus efferentes, or vasa efferentia) connect the rete testis with the initial section...
carry lymph from a lymph node Efferentducts, connect the rete testis with the initial section of the epididymis Efferent coupling, a metric in software...
system. The epididymis serves as an interconnection between the multiple efferentducts at the rear of a testicle (proximally), and the vas deferens (distally)...
the urogenital sinus and the efferentducts form from the mesonephric tubules. For this, it is critical that the ducts are exposed to testosterone during...
tubules to the rete testis located in the mediastinum testis, to the efferentducts, and then to the epididymis where newly created sperm cells mature (spermatogenesis)...
(mediastinum testis) that carries sperm from the seminiferous tubules to the efferentducts. It is the homologue of the rete ovarii in females. Its function is...
and exits via an efferent lymph vessel. An efferent lymph vessel may directly drain into one of the (right or thoracic) lymph ducts, or may empty into...
seminiferous tubules (tubuli seminiferi recti, rete testis, efferentducts), epididymides (appendix), Vas deferens (ampulla) and ejaculatory ducts. v t e...
following articles: Appendix of epididymidis Cremaster muscle Dartos fascia Efferent ductules Epididymis Leydig cell Lobules of testis Paradidymis Rete testes...
the mesonephric ducts (also known as Wolffian ducts) and the paramesonephric ducts, (also known as Müllerian ducts). The mesonephric duct gives rise to...
thoracic duct (also known as the left lymphatic duct, alimentary duct, chyliferous duct, and Van Hoorne's canal) is the larger of the two lymph ducts of the...
cysts in the rete testis is associated with the obstruction of the efferentducts, which connect the rete testis with the head of the epididymis. They...
is upstream from the capillary system of the exocrine pancreas via efferentducts. The acini of the exocrine pancreas are therefore directly exposed to...
through fine tubes called efferentducts. It then travels on through the ureters, which are consequently known as urinogenital ducts. There is no penis, and...
become connected with outgrowths from the mesonephros, which form the efferentducts of the testicle. The descent of the testicles consists of the opening...
deferens, the ejaculatory duct, seminal vesicle and efferentducts. In the female, on the other hand, the Wolffian bodies and ducts atrophy, leaving behind...
personal contributions include the description of testicular tubules, the efferentducts, and corpora lutea. De Graaf may have been the first to understand the...
tubules to the rete testis located in the mediastinum testis, to the efferentducts, and then to the epididymis where newly created sperm cells mature (see...
of many efferent lymph vessels. It in turn drains into one of the two lymph ducts (right lymph duct and the thoracic duct). When an efferent lymph vessel...
vesicle, prostate gland, and similar Reproductive system Barrier cells Efferentducts cell Epididymal principal cell Epididymal basal cell Endothelial cells...
is usually regarded as a detached efferentduct. This structure is derived from the Wolffian duct (mesonephric duct) as opposed to the appendix testis...
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