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phrenic nerve

DEFINITIONS OF: phrenic nerve

1

n one of a pair of nerves that arises from cervical spinal roots and passes down the thorax to innervate the diaphragm and control breathing

Synonyms:
nervus phrenicus
Type of:
nervus spinalis, spinal nerve
any of the 31 pairs of nerves emerging from each side of the spinal cord (each attached to the cord by two roots: ventral and dorsal)
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