sacral nerves(redirected from Sacral spinal nerves)
Five pairs of spinal nerves, the upper four of which emerge through the posterior sacral foramina, the fifth pair through the sacral hiatus (termination of the sacral canal). All are mixed nerves (motor and sensory).
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The five pairs of nerves that arise from the lowermost segments of the spinal cord and control bladder, bowel, and pelvic functions. Stimulation of the sacral nerves by an implanted device is a newer treatment for urinary incontinence.
Mentioned in: Urinary Incontinence
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.