- phrenic nerve n 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 esp. the pericardium, pleura, and diaphragm called also phrenic
* * *the nerve that supplies the muscles of the diaphragm. On each side it arises in the neck from the third, fourth, and fifth cervical spinal roots and passes downwards between the lungs and the heart to reach the diaphragm. Impulses through the nerves from the brain bring about the regular contractions of the diaphragm during breathing.
* * *nervus phrenicus.
Medical dictionary. 2011.
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Phrenic — Phren ic, a. [Gr. ?, ?, the midriff, or diaphragm, the heart, the mind: cf. F. phr[ e]nique.] (Anat.) Of or pertaining to the diaphragm; diaphragmatic; as, the phrenic nerve. [1913 Webster] … The Collaborative International Dictionary of English
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phrenic — 1. SYN: diaphragmatic. 2. Relating to the mind. * * * phren·ic fren ik adj of or relating to the diaphragm phrenic n PHRENIC NERVE * * * phren·ic (frenґik) 1. pertaining to the diaphragm of the body; called also diaphragmatic. 2 … Medical dictionary