Coccygeal nerve
Encyclopedia
Structure
The coccygeal nerve is the 31st spinal nerveSpinal nerve
The term spinal nerve generally refers to a mixed spinal nerve, which carries motor, sensory, and autonomic signals between the spinal cord and the body...
. It arises from the sacral plexus
Sacral plexus
-External links:*...
, and its ventral ramus helps form the coccygeal plexus
Coccygeal plexus
The coccygeal plexus is a plexus of nerves near the coccyx bone.-Structure:This plexus is formed by the fifth sacral nerve and the coccygeal nerve...
. It does not divide into a medial and lateral branch. It is distributed to the skin over the back of the coccyx.
See also
- CoccyxCoccyxThe coccyx , commonly referred to as the tailbone, is the final segment of the vertebral column. Comprising three to five separate or fused vertebrae below the sacrum, it is attached to the sacrum by a fibrocartilaginous joint, the sacrococcygeal symphysis, which permits limited movement between...
- Coccydynia (coccyx pain, tailbone pain)CoccydyniaCoccydynia is a medical term meaning pain in the coccyx or tailbone area, usually brought on by sitting too abruptly.-Diagnosis:A number of different conditions can cause pain in the general area of the coccyx, but not all involve the coccyx and the muscles attached to it. The first task of...
- Ganglion imparGanglion imparThe pelvic portion of each sympathetic trunk is situated in front of the sacrum, medial to the anterior sacral foramina. It consists of four or five small sacral ganglia, connected together by interganglionic cords, and continuous above with the abdominal portion...
- Spinal nerveSpinal nerveThe term spinal nerve generally refers to a mixed spinal nerve, which carries motor, sensory, and autonomic signals between the spinal cord and the body...
External links
- Coccyx pain (tailbone pain, coccydynia) (Peer-reviewed medical chapter, available free online at eMedicine)