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vertebral artery
- the first branch of the subclavian artery; for descriptive purposes, divided into four parts, designated V1 to V4: 1) prevertebral part, the portion before it enters the foramen of the transverse process of the sixth cervical vertebra; 2) cervical part, the portion in the transverse foramina of the first six cervical vertebrae; 3) atlantic (suboccipital) part, the portion running along the posterior arch of the atlas; and 4) intracranial part, the portion within the cranial cavity to its union with the artery from the other side to form the basilar artery.
Syn: arteria vertebralis
WebMD Medical Reference from "Stedman's Medical Dictionary"
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Stedman’s Medical Dictionary 28th Edition, Copyright© 2006_Lippincott Williams & Wilkins. All rights reserved.
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