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Medical Term:

foramen petrosum

 

Definition: an occasional opening in the greater wing of the sphenoid bone, between the foramen spinosum and foramen ovale, which transmits the lesser petrosal nerve.

Synonym(s): canaliculus innominatus, foramen of Arnold, petrosal foramen

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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