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middle clinoid process


Definition: an inconstant, small spur of bone on the body of the sphenoid, posterolateral to (and occasionally continuous with) the tuberculum sellae; it is around this point that the internal carotid artery makes a 180-degree turn, changing direction from anterior to posterior to join the cerebral arterial circle.

Synonym(s): processus clinoideus mediusTA

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.