Among the following statements about sustentacular cells, which one is incorrect?
It is situated in between the germinal epithelial cells
It is related to the nutrition of sperm
It forms the blood-testis barrier
It forms testosterone from estrogen
Sustentacular cells are also known as Sertoli cells. They are found in the seminiferous tubules of the testes and have important roles in supporting and nourishing the developing sperm cells. They are involved in various functions related to spermatogenesis which is the process of sperm cell production.
Option 4 is incorrect because Sustentacular cells do not have the ability to convert estrogen into testosterone. Testosterone production primarily occurs in the Leydig cells which are interstitial cells located outside the seminiferous tubules.
Therefore, the correct answer is option 4 which is the statement that sustentacular cells form testosterone from estrogen.