Medical Definition of phrenic nerve
: a general motor and sensory nerve on each side of the body that arises chiefly from the fourth cervical nerve, passes down through the thorax to the diaphragm, and supplies or gives off branches supplying especially the pericardium, pleura, and diaphragm
— called also phrenic
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“Phrenic nerve.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/phrenic%20nerve. Accessed 17 Apr. 2021.
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