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Phrenic nerve
Pronunciation
Definition 1
A nerve that runs from the spinal cord to the diaphragm (the thin muscle below the lungs and heart that separates the chest from the abdomen). It causes the diaphragm to contract and relax, which helps control breathing. (NCI Dictionary)
Definition 2
Either of a pair of nerves that arise in the cervical plexus and provide innervation of the diaphragm. (NCI Thesaurus)
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