The phrenic nerve, arising from C3,C4,C5. Damage to the brachial plexus can result in temporary or permanent paralysis of the diaphragm
The major function of the phrenic nerves is to innervate the diaphragm, which is the primary muscle responsible for respiration. These nerves play a crucial role in controlling the movement of the diaphragm during breathing by sending signals from the brain to the diaphragm muscle. Dysfunction of the phrenic nerves can lead to respiratory issues and difficulty breathing.
leg
The face is not included in typical dermatome distribution because the cranial nerves innervate the face instead of spinal nerves. The cranial nerves, specifically the trigeminal nerve (CN V), provide sensory innervation to the face.
vagus nerve and sympathetic fibers
Mainly tibial nerve, and superficial peroneal
Smooth muscle Cardiac muscle Gland
Cervical Plexus- The major motor branch of this plexus is the phrenic nerve which from C3 via C4 and passes into the thoracic cavity in front of the first rib to innervate the diaphragm. "C3 C4 C5, keep the diaphragm alive." <3 Hope it helps :)
cranial nerves are nerves which arise from different parts of brain that are paired and 12 pair and 24 in number. peripheral nerves are neurons that exists out side brain and spinalcord and make up peripheral nerve system.
The nerves that innervate the colon originate from the spinal levels T10-L2. These nerves form the superior mesenteric plexus, which supplies the colon with autonomic innervation.
Phrenic Nerve
The nerves innervate the quadriceps. The afferent nerves are the muscle spindles and the efferent are the motor neurons.
There are numerous nerves in the leg, including the sciatic nerve, femoral nerve, and tibial nerve. These nerves innervate different areas of the leg, providing sensation and motor function.