The Full Wiki

More info on Internal carotid plexus

Internal carotid plexus: Wikis


Note: Many of our articles have direct quotes from sources you can cite, within the Wikipedia article! This article doesn't yet, but we're working on it! See more info or our list of citable articles.


From Wikipedia, the free encyclopedia

Nerve: Internal carotid plexus
Sympathetic connections of the ciliary and superior cervical ganglia. (Carotid plexus visible center top.)
Diagram of the cervical sympathetic. (Carotid plexus visible center top.)
Latin plexus caroticus internus
Gray's subject #215 977

The internal carotid plexus (carotid plexus) is situated on the lateral side of the internal carotid artery, and in the plexus there occasionally exists a small gangliform swelling, the carotid ganglion, on the under surface of the artery.

Postganglionic sympathetic fibres ascend from the superior cervical ganglion, along the walls of the internal carotid artery, to enter the internal carotid plexus. These fibres then distribute to deep structures, which include the Superior Tarsal Muscle and pupillary dilator muscles.[1] Some of the fibres from the internal carotid plexus converge to form the deep petrosal nerve.[2]

The internal carotid plexus communicates with the semilunar ganglion, the abducent nerve, and the sphenopalatine ganglion; it distributes filaments to the wall of the carotid artery, and also communicates with the tympanic branch of the glossopharyngeal nerve.

Additional images

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.


  1. ^ Hal Blumenfeld, "Neuroanatomy through Clinical Cases", Sinauer Associates, 2002, p543
  2. ^ Richard L. Drake, Wayne Vogel & Adam W M Mitchell, "Gray's Anatomy for Students", Elsevier inc., 2005


Got something to say? Make a comment.
Your name
Your email address