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Pelvic Nerve (other) , the spinal nerves that arise from vertebral column through the sacrum. The roots of these nerves begin inside of the vertebral column in the level of the L1 vertebra and they extend until the sacrum forming a structure called the cauda equina
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Pelvic nerve may refer to: *pelvic splanchnic nerve *sacral nerves A spinal nerve is a mixed nerve, which carries motor, sensory, and autonomic signals between the spinal cord and the body. In the human body there are 31 pairs of spinal nerves, one on each side of the vertebral column. These are grouped into t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelvic Splanchnic Nerve
Pelvic splanchnic nerves or nervi erigentes are splanchnic nerves that arise from sacral spinal nerves S2, S3, S4 to provide parasympathetic innervation to the organs of the pelvic cavity. Structure The pelvic splanchnic nerves arise from the anterior rami of the sacral spinal nerves S2, S3, and S4, and enter the sacral plexus. They travel to their side's corresponding inferior hypogastric plexus, located bilaterally on the walls of the rectum. They contain both preganglionic parasympathetic fibers as well as visceral afferent fibers. Visceral afferent fibers go to spinal cord following pathway of pelvic splanchnic nerve fibers. The parasympathetic nervous system is referred to as the ''craniosacral outflow''; the pelvic splanchnic nerves are the ''sacral'' component. They are in the same region as the sacral splanchnic nerves, which arise from the sympathetic trunk and provide sympathetic efferent fibers. Function The pelvic splanchnic nerves contribute to the innervatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |