The medial clunial nerves innervate the skin of the
buttocks
The buttocks (singular: buttock) are two rounded portions of the exterior anatomy of most mammals, located on the posterior of the pelvic region. In humans, the buttocks are located between the lower back and the perineum. They are composed ...
closest to the midline of the body. Those nerves arise from the
posterior rami of
sacral spinal nerves
A spinal nerve is a mixed nerve, which carries motor, sensory, and autonomic signals between the spinal cord and the body. In the human body there are 31 pairs of spinal nerves, one on each side of the vertebral column. These are grouped into the ...
(S1, S2, and S3).
Additional images
Image:Gray801.png, Diagram of the distribution of the cutaneous branches of the posterior divisions of the spinal nerves.
Image:Gray803.png, The posterior divisions of the sacral nerves.
External links
*
* - "Superficial Anatomy of the Lower Extremity: Cutaneous Nerves of the Posterior Aspect of the Lower Extremity"
Spinal nerves
Buttocks
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