Question

Which of the following is not part of the intratesticular genital duct system?
A. Rete testis
B. Tubuli recti
C. Vas deferens
D. None of the above

Answer 1

Hint: The intratesticular genital duct system is a terminal segment of convoluted seminiferous tubules, straight tubules, and rete testis. It comprises the male testis. The testes are the primary sexual organ of males. The testis is involved in the production of male gametes called sperms. On the other hand, Vas deferens functions to transport the sperms.

Complete answer: The male reproductive system consists of testes as the primary sexual organs. The testes are involved in the production of sperms. The testes are present in the scrotum. Also, the testis releases male hormones that regulate and maintain secondary sexual organs. The intratesticular genital duct system refers to the duct system situated inside the testes. This system regulates the production of sperms and their transport to an external duct system including vas deferens. The intratesticular genital duct system consists of rete testis and tubuli recti.

-The Rete testis is a network of minute tubules that are present in the testicle part that carries sperm. The sperms are carried to different ducts from seminiferous tubules through Rete testis. Also, they function to mix the sperms as they leave seminiferous tubules. So, the primary function of Rete testis is mixing and transport of the sperms.
-The Tubuli recti are structures inside the testes that connect the seminiferous tubules to Rete testis.
-The Vas deferens is situated outside the testes. It is connected to the seminal vesicle by a duct and opens in the urethra by the duct called the ejaculatory duct. These ducts function to store and transport the sperms from the testes to outside of the urethra.
Therefore, option C is the right answer.
Note: The sperms before being ejaculated are nourished with various nourishing proteins including fructose. These proteins and substances provide energy and nourishment to sperms to survive and swim towards the female gamete.