Where Is The Vagus Nerve And What Does It Do

It is the longest nerve of the autonomic nervous system in the human body and comprises sensory and motor fibers.

The vagus nerve is the longest cranial nerve and runs from the brain to the gut. The vagus nerve historically cited as the pneumogastric nerve is the tenth cranial nerve or cn x and interfaces with the parasympathetic control of the heart lungs and digestive tract. It also receives sensory impulses from throat organs of abdomen and chest as well as ear. Moreover these pairs of nerves all arise directly from the brain including the brainstem it contains both sensory and motor fibers.

The vagus nerve comes as the longest of 12 cranial nerves. It is also a part of the autonomic nervous system. Vagus nerve relays motor nerve impulses to different muscles such as those of the tongue and voice box. When it overreacts it can cause a sudden drop in heart rate and blood pressure resulting in.

And it oversees a vast range of crucial functions communicating motor and. When the brain triggers parasympathetic activation the vagus nerve carries the messages to the heart decreasing the heart rate and blood pressure to the lungs to constrict the respiratory passageways to every organ in the digestive system to increase motility and blood flow to the digestive tract to promote defecation to the kidneys and bladder to promote urination and to reproductive organs to aid in sexual arousal. It s part of the parasympathetic system which allows the body to rest and digest. The vagus nerve also supplies visceral nerve impulses to abdomen organs chest organs and glands of throat.

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The vagus nerves are normally referred to in the singular. It sends sensory information to the brain and controls certain motor functions throughout the body. The vagus nerve is one of the cranial nerves that connect the brain to the body. The vagus nerve has two bunches of sensory nerve cell bodies and it connects the brainstem to the body.

The sensory fibers originate from neurons of the nodose ganglion whereas the motor fibers come from neurons of the dorsal. When the brain triggers parasympathetic activation the vagus nerve carries the messages to the heart decreasing the heart rate and blood pressure to the lungs to constrict the respiratory passageways to every organ in the digestive system to increase motility and blood flow to the digestive tract to promote defecation to the kidneys and bladder to promote urination and to reproductive organs to aid in sexual arousal. Remember the vagus nerve stimulates certain muscles in the heart that help to slow heart rate. The vagus nerve also known as the 10th cranial nerve or cn x is a very long nerve that originates in the brain stem and extends down through the neck and into the chest and abdomen.