Contents
It transmits into the cranium, the internal carotid artery, and the carotid plexus of nerves.
Sympathetics to the head from the superior cervical ganglion 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.
Read more about this topic: Carotid Canal
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