Nervous System
Spinal Ganglion of Fourth Sacral Nerve (Left)
Ganglion spinale nervi sacralis quarti
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The spinal ganglion of the fourth sacral nerve is the swelling of the posterior root of the fourth sacral nerve. It is located just medial to the split of anterior and posterior roots and is generally in, or just medial, to the fourth sacral foramen.
This ganglion contains cell bodies of the somatic sensory afferents carrying information towards the spinal cord from the skin of the genitals (labia and clitoris), and perianal region.
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Spinal Ganglion
The spinal ganglion is formed by the cell bodies of the primary sensory neurons.
