Question
Thu March 22, 2012 By:

why are sperms kept in scrotum sacs

Expert Reply
Fri March 23, 2012
Sperm production occurs in testes, which are placed in scrotum sacs outside the body and not in abdominal cavity. 
Sperm production and survival need a temperature lower than the body temperature. Hence testes are placed outside the body which allows for air circulation to cool them to just the right temperature.
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