Lexic.us

Definition of Phrenic nerve

1. Noun. One of a pair of nerves that arises from cervical spinal roots and passes down the thorax to innervate the diaphragm and control breathing.

Medical Definition of Phrenic nerve

1. The motor nerve of the diaphragm. The phrenic nerve fibres originate in the cervical spinal column (mostly c4) and travel through the cervical plexus to the diaphragm. (12 Dec 1998)

Lexicographical Neighbors of Phrenic Nerve

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