Spermatogenesis — KinFAST

Adaptive test — questions are selected based on your ability estimate. — Tag: HormonalControl

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In the testes, multiple hormones and two distinct cell types coordinate to support sperm production. Based on the integrated roles of FSH, LH, Sertoli cells, Leydig cells, testosterone, and inhibin, which combination best describes how sperm production is regulated?

FSH stimulates Sertoli cells to support developing sperm cells; LH stimulates Leydig cells to produce testosterone, which drives spermatogonia to multiply and undergo meiosis; when sperm numbers are sufficient, Sertoli cells release inhibin, which indirectly lowers testosterone and slows further sperm production FSH directly stimulates spermatogonia to undergo mitosis without involving Sertoli or Leydig cells, while LH inhibits sperm production Sperm production is unregulated and continues at a constant rate throughout adult life regardless of hormone levels Sertoli cells produce testosterone while Leydig cells form the blood-testes barrier and produce inhibin

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