Nerve, recurrent laryngeal
One of the best known branches of the vagus nerve, a very long nerve that originates in the brainstem. After the recurrent laryngeal nerve leaves the vagus nerve, it goes down into the chest and then loops back up (“recurs”) to supply nerves to the larynx (the voice box). Damage to the recurrent laryngeal nerve causes laryngeal palsy — paralysis of the larynx — on the affected side and can result from diseases inside the chest such as a tumor or an aneurysm of the arch of the aorta.
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The seventh cranial nerve is the facial nerve, a mixed nerve that has fibers both going out and coming in (both efferent and afferent fibers). It supplies the muscles of facial expression. The cranial nerves emerge from or enter the skull (the cranium), as opposed to the spinal nerves which emerge from the vertebral column. […]
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