Common questions

What are efferent ductules?

What are efferent ductules?

The efferent ductules (ductuli efferentes) are a series of parallel thin, delicate tubules that connect the rete testis to a single tube, the epididymis. The efferent ducts are often referred to as “conduits” because sperm travel so rapidly through these tubules into the epididymis.

What are the functions of efferent ductules?

The efferent ducts collect and store spermatozoa and conduct it from the rete testis into the head of the epididymis. In rodents, the efferent ducts are located within the epididymal fat pad.

What role do the efferent ducts play in reproduction?

The efferent ductules present the highest levels of ESR1 and ESR2 in the male reproductive system, and represent a major target of estrogen action. In efferent ductules, ESR1 has a crucial role in the regulation of fluid reabsorption, and in the epididymis the receptor helps to maintain fluid osmolality and pH.

How many efferent ductules are there?

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.

What is the sperm pathway?

When ejaculation occurs, sperm are forcefully expelled from the tail of the epididymis into the vas deferens. Sperm then travel through the vas deferens through up the spermatic cord into the pelvic cavity, over the ureter to the prostate behind the bladder.

Do men have cilia?

Cilia are cell-surface, microtubule-based organelles that project into extracellular space. Motile cilia are also present in the male and female reproductive tracts. In the female, wave-like motions of oviductal cilia transport oocytes and embryos toward the uterus.

Is Ductuli Efferentes and Vasa Efferentia same?

Ductuli efferentes is that part of vasa efferentia which lies inside testis and is hence part of intra testicular duct system.. while remaining part is simply called vasa efferentia, which is present outside testis, and hence a part of extra testicular duct system..

What happens if cilia stopped working?

If the cilia don’t work well, bacteria stay in your airways. This can cause breathing problems, infections, and other disorders. PCD mainly affects the sinuses, ears, and lungs. Some people who have PCD have breathing problems from the moment of birth.