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The '''scrotum''' is found in most male mammals, including humans. It is the sack that contains the testes. In humans the scrotum hangs just below the [[penis]]. It is described as follows:
<blockquote>
the pouch that contains the testes and their accessory organs. It is composed of skin, the tunica dartos, fascia, and the tunica vaginalis testis. Each testis is connected to a cremaster muscle descending from the abdominal wall. During cold weather these muscles draw the testes closer to the body to maintain their temperature, and in hot weather the reverse occurs; the scrotum usually follows this movement.<ref>{{REFweb