A patient complains of numbness in the skin of the buttocks and the posterior surface of the thigh and leg.The spinal nerve or peripheral branch most likely involved with this condition is the _____ plexus.
A) brachial
B) cervical
C) coccygeal
D) thoracic

Question

Quizplus · Accepted Answer

Numbness in the skin of the buttocks and the posterior surface of the thigh and leg is suggestive of involvement of the coccygeal plexus, which arises from the S4-S5 spinal nerves and innervates the perineal region, buttocks, and posterior surface of the thigh and leg. The brachial and cervical plexuses innervate the upper limb, while the thoracic plexus supplies the chest wall and abdomen.

A Patient Complains of Numbness in the Skin of the Buttocks