Question 55 · LEK · Infertility
Indicate true statements concerning male reproductive system:
1) cycle of the seminiferous epithelium takes approx. 74 days;
2) in the testes FSH acts mainly on Sertoli and LH mainly on Leydig cells;
3) after gonadotropin stimulation Leydig cells produce testosterone;
4) estrogens do not participate in the regulation of male reproductive system.
The correct answer is:
2) in the testes FSH acts mainly on Sertoli and LH mainly on Leydig cells;
3) after gonadotropin stimulation Leydig cells produce testosterone;
4) estrogens do not participate in the regulation of male reproductive system.
The correct answer is:
- A. all the above.
- B. 2,4.
- C. 1,2,3.
- D. 2,3,4.
- E. 3,4.
Hint
Match each gonadotropin to its testicular target cell and consider whether aromatized testosterone has any regulatory role in men.
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