nervus phrenicus


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Related to nervus phrenicus: nervus vagus
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Noun1.nervus phrenicus - one of a pair of nerves that arises from cervical spinal roots and passes down the thorax to innervate the diaphragm and control breathing
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)