Question

Choose the correct order of arrangement of male accessory ducts in the reproductive system of human beings:

• A. rete testis $\to$ vasa efferentia $\to$ epididymis $\to$ vas deferens
• B. rete testis $\to$ vas deferens $\to$ epididymis $\to$ vasa efferentia
• C. vas deferens $\to$ rete testis $\to$ vasa efferentia $\to$ epididymis
• D. vas deferens $\to$ rete testis $\to$ epididymis $\to$ vasa efferentia

Answer 1

The correct option is A rete testis $\to$ vasa efferentia $\to$ epididymis $\to$ vas deferens

Testis consists of seminiferous tubules in which the sperms are produced.

The seminiferous tubules open into rete testis which in turn opens into fine ductules called vasa efferentia.

Vasa efferentia leave the testis and open into epididymis which is located along the posterior surface of each testis.

Epididymis opens into vas deferens which ascends and enters into the abdomen and loops over the urinary bladder.

The vas deferens receives a duct from seminal vesicle and together they join to form the ejaculatory duct which opens into urethra.

Hence the correct order of arrangement of male accessory ducts is:
rete testis $\to$ vasa efferentia $\to$ epididymis $\to$ vas deferens $\to$ ejaculatory duct $\to$ urethra.

The accessory ducts help in the storage and transportation of the sperms from the testes to the outside through urethra.