All of the following are functions of the sustentocytes in the seminiferous tubules except
A) secretion of androgen-binding protein.
B) secretion of testicular fluid.
C) secretion of testosterone.
D) phagocytosis of excess cytoplasm from spermatids during spermiogenesis.

Question

Quizplus · Accepted Answer

Sustentocytes, also known as Sertoli cells, play various roles in the seminiferous tubules, including secretion of androgen-binding protein and testicular fluid, and phagocytosis of excess cytoplasm from spermatids during spermiogenesis. However, they do not secrete testosterone. Testosterone production occurs in the interstitial cells of Leydig outside of the seminiferous tubules.

All of the Following Are Functions of the Sustentocytes in the Seminiferous