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The dartos fascia is a fat-free layer of smooth muscular fiber outside the external spermatic fascia but below the skin. It is a continuation of Scarpa's fascia which is a membranous layer of the subcutaneous tissue in the abdominal wall. The wrinkled (rugose) appearance of the scrotum is due to this layer of fascia.
[edit] Gender differences
[edit] FunctionThe tunica dartos acts to regulate the temperature of the testicles, which promotes spermatogenesis. It does this by expanding or contracting to wrinkle the scrotal skin.
The dartos muscle works in conjunction with the cremaster muscle to elevate the testis but should not be confused with the cremasteric reflex. [edit] Related termsSome dartos-related terms:
[edit] Additional images[edit] External links
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