Testis Structure and Spermatogenesis — NEET Biology
📚 Practice ConceptThe testes are situated outside the abdominal cavity within a pouch called scrotum. The scrotum helps in maintaining the low temperature of the testes (2–2.5° C lower than the normal internal body temperature) necessary for spermatogenesis. In adults, each testis is oval in shape, with a length of about 4 to 5 cm and a width of about 2 to 3 cm. The testis is covered by a dense covering. Each testis has about 250 compartments called testicular lobules.
Q5. Assertion (A): Scrotal positioning of testes is essential for fertility. Reason (R): Spermatogenesis requires temperature 2–2.5°C lower than body temperature.
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