Menstrual Cycle and Spermatogenesis · Physiology

Which hormone is primarily responsible for initiating spermatogenesis?

  1. Circulating testicular testosterone
  2. Follicle-stimulating hormone
  3. Luteinizing hormone (LH)
  4. Sertoli-cell inhibin
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Correct answer: Follicle-stimulating hormone

Follicle-stimulating hormone acts on Sertoli cells to initiate and support spermatogenesis. It promotes synthesis of androgen-binding protein.

Difficulty: Medium Question 10 of 40

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