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Schematic drawings of form and course variations of the cervical ICA: (A) straight course, (B) curved course, (C) kinking, and (D) coiling [1]. Curving and looping of the internal carotid artery in relation to the pharynx: Frequency, embryology and clinical implications. J Anat, 2000; 197: 373–81 by Paulsen F, Tillman B, Christofides C, et al. © 2000 Anatomical Society of Great Britain and Ireland. Reproduced with permission of John Wiley and Sons via Copyright Clearance Center.
