scrotum(redirected from Scrotal sack)
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, one of a pair of glands that produce the male reproductive cells, or sperm. In fetal life the testes develop in the abdomen, then descend into an external sac, the scrotum.
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a musculocutaneous, sacciform structure in man and most viviparous mammals. In man a septum divides the scrotum into two halves, each of which contains a testis and epididymis, as well as the scrotal section of a spermatic cord. The scrotum is composed of several distinct layers: the skin, the dartos, several fasciae, and a muscular layer. The scrotum develops during the third month of pregnancy.