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On the interior surface of the temporal bone, behind the rough surface of the apex, is the large circular aperture of the carotid canal, which ascends at first vertically, and then, making a bend, runs horizontally forward and medialward.

ContentsEdit

It transmits into the cranium, the internal carotid artery, and the carotid plexus of nerves.

Sympathetics to the head also pass through the carotid canal. They have several motor functions: raise the eyelid (superior tarsal muscle), dilate pupil, innervate sweat glands of face and scalp and constricts blood vessels in head.

Additional imagesEdit

Gray191.png

Horizontal section of nasal and orbital cavities.

Coronal section of right temporal bone.

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External linksEdit

• Atlas of anatomy at UMich n3a8p1
• Roche Lexicon - illustrated navigator, at Elsevier 34257.000-1

• Photo at Winona.edu

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.