The diaphragm is innervated by the phrenic nerve, which allows it to contract.
The C3-C5 spinal nerves, which are parts of the cervical plexus, give rise to the phrenic nerve, a mixed nerve. It begins in the neck and travels through the thorax vertically before terminating on the diaphragm.
The phrenic nerve is bilateral, there are some significant distinctions between the left and right counterparts in terms of its courses and interactions with surrounding structures.
The primary purpose of the phrenic nerve, which makes it an essential part of the physiology of breathing, is to deliver the full motor innervation to the diaphragm.
Diaphragm is controlled by the phrenic nerve (the large dome-shaped muscle between abdominal and chest cavities). It is necessary for breathing. Diaphragm contracts as a result of signals sent by nerve (become thicker and flatter). This motion makes room for lungs to expand and take in air (inhalation).
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