Why testis are extra abdominal in position ?
Find out more about cells of Rauber.
Differentiate between spermatogenesis and oogenesis
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In man, the testes are paired oval bodies about 4 - 5 cm in length. The testes develop in the pelvic cavity but by the time the baby is born, they move out of the abdominal cavity, and lie in a pouch of skin called as scrotum. The scrotum hangs between the thighs. The testes are extra - abdominal because sperms mature at a temperature slightly lower than the body temperature. The scrotal sac is filled with a fluid called as hydrocoel. The scrotal sacs act as thermoregulators and keep the testicular temperature 2 °C lower than body temperature for normal spermatogenesis. The cavity of the testes is called as vaginal coelom and it is connected to the abdominal cavity through inguinal canal.
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