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*Tunica Dartos - Smooth muscle layer found below the skin of the scrotum. Smooth muscle tone controlled by Androgens released in response to temperature changes detected by sensory nerves within the scrotal skin. The tunica dartos is responsible for holding the testes close to the body during cold temperatures, as it can maintain sustained contraction, and letting the testes lower in hot weather, increasing the surface area for heat loss from the skin.
 
*Tunica Dartos - Smooth muscle layer found below the skin of the scrotum. Smooth muscle tone controlled by Androgens released in response to temperature changes detected by sensory nerves within the scrotal skin. The tunica dartos is responsible for holding the testes close to the body during cold temperatures, as it can maintain sustained contraction, and letting the testes lower in hot weather, increasing the surface area for heat loss from the skin.
 
*Scrotal fascia
 
*Scrotal fascia
*Parietal Vaginal Tunic - The first peritoneam layer taken into the scrotum by the peritoneum fusion with the gubernaculum during testicular descent.
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*Parietal Vaginal Tunic - The first peritoneum layer taken into the scrotum by the peritoneum fusion with the gubernaculum during testicular descent.
 
'''Vaginal Cavity''' - A potential space
 
'''Vaginal Cavity''' - A potential space