Topics:
Animal Refresher, Animal Reproduction
Endocrine Cells of Testes
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Question (English)
Endocrine cells of testes are:
- Leydig cells ✓ Correct
- Sertoli cells
- Both Leydig and Sertoli cells
- None of the above
Explanation:
Correct Answer: Leydig cells
Leydig cells (also called interstitial cells) are the endocrine cells of the testes. They are located in the interstitial spaces between the seminiferous tubules and secrete the male sex hormone testosterone under the influence of LH (Luteinizing Hormone).
Cell Types in the Testes
- Leydig cells (Interstitial cells): Endocrine cells → secrete Testosterone
- Sertoli cells (Sustentacular/Nurse cells): Exocrine/support cells → secrete AMH, Inhibin, ABP (Androgen Binding Protein); nourish developing spermatozoa
- Germ cells: Give rise to spermatozoa through spermatogenesis
Why Other Options Are Wrong
- Sertoli cells → These are the exocrine/support cells, not endocrine cells. They do not secrete hormones into the bloodstream like Leydig cells do.
- Both → Only Leydig cells are the true endocrine cells (secreting testosterone into blood).
📚 About this Topic — Animal Refresher
This multiple choice question is from Animal Refresher, Animal Reproduction. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Refresher to strengthen your preparation.
