Give scientific reasons : When male excites sexually epididymis wall shrinks / contracts.
Give scientific reasons : When male excites sexually epididymis wall shrinks / contracts.
Epididymis is $6 \mathrm{~m}$ long and a very coiled structure. It provides temporary store house to immature sperms. In which sperm cells get mature and obtains capacity to swim.
When a male excites sexually, the wall of epididymis contracts and sperm cells are transported to vas deferens.
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