Anatomy and Course
- The carotid sinus nerve runs downward anterior to the internal carotid artery.
- It communicates with the vagus nerve and sympathetic trunk.
- It divides in the angle of the bifurcation of the common carotid artery.
Innervation
- The carotid sinus nerve innervates the carotid body.
- It also innervates the carotid sinus.
Function
- The carotid sinus nerve conveys information from the baroreceptors of the carotid sinus, mediating blood pressure homeostasis.
- It also conveys information from the chemoreceptors of the carotid body, providing information about the partial pressures of blood oxygen and carbon dioxide.
References
- Incorporates text in the public domain from page 909 of the 20th edition of Gray's Anatomy (1918).
- External link: Cranialnerves at The Anatomy Lesson by Wesley Norman (Georgetown University).
- External link: Cranial Nerves. Yale School of Medicine. Archived from the original on 2016-03-03.
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.
| Branch of glossopharyngeal nerve to carotid sinus | |
|---|---|
 Hypoglossal nerve, cervical plexus and their branches (nerve not labeled, but region is visible) | |
| Details | |
| From | Glossopharyngeal nerve |
| Identifiers | |
| Latin | Ramus sinus carotici nervi glossopharyngei |
| TA98 | A14.2.01.146 |
| TA2 | 6327 |
| FMA | 53488 |
| Anatomical terms of neuroanatomy | |
