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.