|Nerve: Coccygeal nerve
Areas of distribution of the cutaneous branches of the posterior divisions of the spinal nerves. The areas of the medial branches are in black, those of the lateral in red.
Plan of sacral and pudendal plexuses. (Coccygeal labeled at bottom right.)
The coccygeal nerve is the spinal nerve that corresponds to the coccyx bone.
The coccygeal nerve is the 31st spinal nerve. It arises from the sacral plexus, and its anterior root helps form the coccygeal plexus. It does not divide into a medial and lateral branch. It is distributed to the skin over the back of the coccyx.
This article incorporates text from a public domain edition of Gray's Anatomy.