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Carotid sinus nerve

Field	Value
Name	Branch of glossopharyngeal nerve to carotid sinus
Latin	ramus sinus carotici nervi glossopharyngei
Image	Gray794.png
Caption	Hypoglossal nerve, cervical plexus and their branches (nerve not labeled, but region is visible)
BranchFrom	Glossopharyngeal nerve

The carotid branch of the glossopharyngeal nerve (carotid sinus nerve or Hering's nerve) is a small branch of the glossopharyngeal nerve (cranial nerve IX) that innervates the carotid sinus, and carotid body.

Anatomy

Course and relations

It runs downward anterior to the internal carotid artery. It communicates with the vagus nerve and sympathetic trunk before dividing in the angle of the bifurcation of the common carotid artery to innervate the carotid body, and carotid sinus.

Function

It conveys information from the baroreceptors of the carotid sinus to the vasomotor center in the brainstem (in order to mediate blood pressure homeostasis), and from chemoreceptors of the carotid body (mainly conveying information about partial pressures of blood oxygen, and carbon dioxide).

References

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

glossopharyngeal-nerve blood-pressure

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