Question

Describe the route taken during the descent of the male gonads. Where and how gonads originate, how they descend from their place of origin to the final place and explain why it is important.

Answer 1

Testis descent down the ingual Canal. Before descent the testis is seen between the posterior abdominal wall and the inguinal abdominal ring. Gubemaculum connects the testes to the inguinal ring. The growth of the gubemaculum marks the beginning of inguinal canal formation. The regressing gubemaculum makes the testes pass slowly through the inguinal canal. In the end the gubemaculum become fully regressed and thus the testis tech the scortum. The gonads develop in the mesothelial layer of peritoneum. Gonads are derived from the intermediate mesoderm. The urogenital ridges develop as outgrowth of the coelomic eithelium and form gonads. Like the female gonads the male gonad too matures within the body. But after development they reaches scortum. This is because testes need a temperature less than the body temperature. So it is maintained in the scortum which is 3.1°C the body temperature. For spermatogenesis this low temperature is necessary hence the gonads are transferred to the scortum from the orgin.