Question

The nurse cells of the seminiferous tubules do all of the following except

A) maintain the blood-testis barrier.
B) support spermiogenesis.
C) secrete inhibin.
D) secrete testosterone.
E) secrete androgen-binding protein.

Answer 1

Sertoli cells, or nurse cells, have several functions in the seminiferous tubules, but they do not secrete testosterone.

Step-by-step explanation:

Sertoli cells, also known as nurse cells, are important supporting cells found in the seminiferous tubules of the testes. They perform several functions, including maintaining the blood-testis barrier, supporting spermiogenesis, and secreting inhibin and androgen-binding protein. However, Sertoli cells do not secrete testosterone. Testosterone is primarily produced by the interstitial cells of Leydig, which are located outside of the seminiferous tubules.