Question

The interstitial cells of the testis

A. Contribute to the volume of seminal fluid. 

B. Are the source of the hormone inhibin. 

C. Are stimulated to secrete by luteinizing hormone (LH). 

D. Depend on hypothalamic activity to function properly. 

E. Are non-functional unless the testis descends from the abdomen to the scrotum.

Answer 1

A. False They secrete testosterone into the circulation.

B. False This hormone is produced by the seminiferous tubules. 

C. True LH is the interstitial cell-stimulating hormone in the male. 

D. True Gonadotropin releasing hormone from the hypothalamus is needed for LH secretion. 

E. False Undescended testes can secrete testosterone.