The Phrenic Nerve - Anatomical Course - TeachMeAnatomy

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The phrenic nerve is a bilateral, mixed nerve that originates from the cervical nerves in the neck and descends through the thorax to innervate the diaphragm.

It is the only source of motor innervation to the diaphragm and therefore plays a crucial role in breathing.

In this article, we shall look at the anatomy of the phrenic nerve – its anatomical course, motor and sensory functions.

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