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Contraction of the dartos muscle actually causes wrinkling of the scrotal skin, since the dartos muscle is essentially a fascial layer directly underneath the skin composed predominantly of muscle fibers which thickens the integumentary layer with contraction. This thickening of the skin correlates with a lower surface area and preservation of heat.
This article refers to the dartos as both a unit of smooth muscle and as fascia, a continuation of Scarpa's fascia. It would be beneficial for students/readers to have this clarified and perhaps see the differences where the dartos is a fascial layer, and where it is smooth muscle.
Xflipx (
talk)
20:27, 27 September 2012 (UTC)
The labia majora (...) Underlying the skin is a poorly developed muscle layer: the tunica dartos labialis. https://www.sciencedirect.com/topics/medicine-and-dentistry/labia-majora 2003:E8:5F15:9229:1CD:7906:2BAB:7F9A ( talk) 21:27, 1 January 2020 (UTC)
![]() | This article is rated Start-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | |||||||||||||
|
Contraction of the dartos muscle actually causes wrinkling of the scrotal skin, since the dartos muscle is essentially a fascial layer directly underneath the skin composed predominantly of muscle fibers which thickens the integumentary layer with contraction. This thickening of the skin correlates with a lower surface area and preservation of heat.
This article refers to the dartos as both a unit of smooth muscle and as fascia, a continuation of Scarpa's fascia. It would be beneficial for students/readers to have this clarified and perhaps see the differences where the dartos is a fascial layer, and where it is smooth muscle.
Xflipx (
talk)
20:27, 27 September 2012 (UTC)
The labia majora (...) Underlying the skin is a poorly developed muscle layer: the tunica dartos labialis. https://www.sciencedirect.com/topics/medicine-and-dentistry/labia-majora 2003:E8:5F15:9229:1CD:7906:2BAB:7F9A ( talk) 21:27, 1 January 2020 (UTC)