This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sex Hormones, Subject name: Physiology
Which of the following hormone is secreted by Sertoli cells: 
Select and explain. 
A. Testosterone, B. Inhibin, C. Estrogen, D. Androstenedione
B: Inhibin
Answer: B: Inhibin 
Explanation: Ans. B. InhibinSERTOLI CELLS are the supporting elongated cells of the seminiferous tubules of the testes to which spermatids attach to be nourished until they become mature spermatozoa. Sertoli cells produce the hormone inhibin, which is a polypeptide that inhibits FSH.