Sketch the labelled diagram of Human male reproduetive system.
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CBSE
Biology
Grade 12
Male reproductive organs
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Draw a labelled diagram of the human male reproductive system.
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Hint:The reproductive system in males is located in the pelvic region. It includes a pair of testes with accessory ducts, glands and the external genitalia.
Complete answer:
The testes are found within a pouch called scrotum outside the abdominal cavity. The scrotum helps to keep the low temperature of testes needed for spermatogenesis. The testis is surrounded by a thick covering. Each testis has many compartments known as testicular lobules. Each lobule consists of one to three tightly coiled seminiferous tubules that produce sperms. The sperms are tiny bodies composed mostly of genetic material, with a long tail that makes them migrate into the female germ cell.
There are two kinds of cells- male germ cells and Sertoli cells that line the inside of each seminiferous tubule. There are small blood vessels and interstitial cells or Leydig cells in the regions outside of the seminiferous tubules which are known as interstitial spaces. The Leydig cells produce and secrete the testicular hormones known as androgens. There are also other cells, which are immunologically competent.