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phrenic

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phrenic /phren·ic/ (fren´ik)
1. diaphragmatic.
2. mental (1).
phren·ic (frnk, frnk)
adj.
1. Of or relating to the mind.
2. Of or relating to the diaphragm.
phrenic
[fren′ik]
Etymology: Gk, phren, mind
1 pertaining to the diaphragm.
2 pertaining to the mind.
phrenic [fren´ik]
1. pertaining to the diaphragm or to the mind.
2. diaphragmatic.
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.
phrenic (freˑ·nik),
adj 1. relating to the diaphragm.
2. relating to the mind.
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Phrenic.
phrenic
pertaining to the diaphragm.
phrenic nerve
one of the paired nerves to the diaphragm that arises from the caudal cervical nerves (4-7, the specific branches varying with species), passes through the thoracic inlet and in the mediastinum and adjacent structures to the diaphragm.
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Diaphragmatic pacing is performed using a collection of electrodes connected to the phrenic nerves on the diaphragm.
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The vagus sends a signal to the phrenic nerve that sends the nerve impulse to the diaphragm.
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When something triggers these nerves - eating too quickly, for example - a signal is sent to the phrenic nerve, which controls the diaphragm.
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