middle clinoid process

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middle clinoid process

[TA]
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 medius [TA]
References in periodicals archive ?
Any fusion of the posterior with anterior or middle clinoid processes was also noticed.
Unilateral fusion of the posterior and middle clinoid processes was seen in one skull.
The occurrence of partially or completely ossified ligamentous connection between the anterior and middle clinoid processes forming the carotico-clinoid foramen was observed and noted.
The caroticoclinoid foramen was first described by Henle (1885) as a bony foramen formed by merging of the anterior and middle clinoid processes' tops.