Efferent ductule

Efferent ductules are a series of small tubes that transport sperm from the retestis to the epididymis in the male reproductive system. They are part of the duct system of the male reproductive organs, which also includes the vas deferens and the urethra.

Anatomy

The efferent ductules connect the rete testis with the initial section of the epididymis. There are typically 3-20 efferent ductules, which coalesce into a single duct that forms the epididymis. The ductules are lined with ciliated columnar epithelium, which helps to move the sperm towards the epididymis.

Function

The primary function of the efferent ductules is to transport sperm from the rete testis to the epididymis. The cilia in the ductules help to propel the sperm along this path. In addition to transporting sperm, the efferent ductules also play a role in sperm maturation. They absorb fluid from the sperm, which helps to concentrate the sperm and increase their motility.

Clinical significance

Abnormalities in the efferent ductules can lead to male infertility. For example, blockages in the ductules can prevent sperm from reaching the epididymis, which can result in low sperm count or azoospermia (absence of sperm in the semen). In some cases, surgical intervention may be necessary to correct these abnormalities.

See also

• Male reproductive system
• Spermatozoon
• Epididymis
• Rete testis