Male Reproductive System Structure — NEET Biology
📚 Practice ConceptHumans are sexually reproducing and viviparous. The male reproductive system is composed of a pair of testes, the male sex accessory ducts and the accessory glands and external genitalia. Each testis has about 250 compartments called testicular lobules, and each lobule contains one to three highly coiled seminiferous tubules. Each seminiferous tubule is lined inside by spermatogonia and Sertoli cells. The spermatogonia undergo meiotic divisions leading to sperm formation, while Sertoli cells provide nutrition to the dividing germ cells. The Leydig cells outside the seminiferous tubules, synthesise and secrete testicular hormones called androgens. The male external genitalia is called penis.
Assertion (A): Sertoli cells undergo meiotic divisions to form sperms in the seminiferous tubules. Reason (R): Male germ cells provide nutritional support to developing gametes.
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