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RRB Group-D Model Paper 16 with answers for online practice
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© examsnet.com
Question : 10
Total: 100
Which cells synthesize and secrete testicular hormones (androgens) in a man?
Sertoli cells
Mucus cells
Spermatogonia
Leydig cells
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Solution:
The male reproductive system includes a pair of testes along with accessory ducts, glands and the external genitalia.
Each testis has about 250 compartments called testicular lobules.
Each lobule contains one to three highly coiled seminiferous tubules in which sperms are produced.
Each seminiferous tubule is lined on its inside by two types of cells called male germ cells (spermatogonia) and Sertoli cells.
The male germ cells undergo meiotic divisions finally leading to sperm formation, while Sertoli cells provide nutrition to the germ cells.
The regions outside the seminiferous tubules called interstitial spaces, contain small blood vessels and interstitial cells or Leydig cells.
Leydig cells synthesise and secrete testicular hormones called androgens.
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