phrenic nerve

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phrenic

 [fren´ik]
1. pertaining to the diaphragm or to the mind.
3. mental (def. 1).
phrenic nerve a major branch of the cervical plexus, extending through the thorax to provide innervation of the diaphragm. Nerve impulses from the inspiratory center in the brain travel down it, causing contraction of the diaphragm, so that inhalation can occur.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

phren·ic nerve

[TA]
arises from the cervical plexus, chiefly conveying fibers from the fourth cervical nerve, passes downward in front of the anterior scalene muscle and enters the thorax between the subclavian artery and vein behind the sternoclavicular articulation; it then passes in front of the root of the lung to the diaphragm; it is mainly the motor nerve of the diaphragm but sends sensory fibers to the mediastinal parietal pleura, the pericardium, the diaphragmatic pleura and peritoneum, and branches (phrenicoabdominales branches) that communicate with branches from the celiac plexus.
Synonym(s): nervus phrenicus [TA]
Farlex Partner Medical Dictionary © Farlex 2012

phren·ic nerve

(fren'ik nĕrv) [TA]
Arises from the cervical plexus, chiefly from the fourth cervical nerve; passes downward in front of the anterior scalene muscle and enters the thorax between the subclavian artery and vein behind the sternoclavicular articulation; it then passes in front of the root of the lung to the diaphragm; it is mainly the motor nerve of the diaphragm but sends sensory fibers to the mediastinal parietal pleura, the pericardium, the diaphragmatic pleura and peritoneum, and branches (phrenicoabdominal branches) that communicate with branches from the celiac plexus.
Synonym(s): nervus phrenicus [TA] .
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
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