Menstrual Cycle and Spermatogenesis · Physiology

Which hormone acts directly on Leydig cells to stimulate testosterone production?

  1. Follicle-stimulating hormone
  2. Luteinizing hormone
  3. Gonadotropin-releasing hormone
  4. Inhibin
Show answer and explanation

Correct answer: Luteinizing hormone

Luteinizing hormone (LH) binds to receptors on the interstitial cells of Leydig. This triggers the signaling pathway that increases the conversion of cholesterol to testosterone.

Difficulty: Medium Question 32 of 40

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