ANATOMICAL VARIATIONS OF THE VERTEBRO-BASILAR SYSTEM AND THEIR CONSEQUENCES ON CEREBRAL CIRCULATION

ZYLBEARI, Gazmend and ZYLBEARI, Art and BEXHETI, Zamira and MASHA, Elita and ZDRAVKOVSKA, Milka and KRSTEV, Tose and BEXHETI, Sadi (2025) ANATOMICAL VARIATIONS OF THE VERTEBRO-BASILAR SYSTEM AND THEIR CONSEQUENCES ON CEREBRAL CIRCULATION. International Journal of Medical Sciences, 10 (19-20). pp. 158-166. ISSN 2545 - 4870

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Abstract

The intracranial portions of the vertebral arteries (VA), the basilar artery (BA), and their branches together form the vertebrobasilar system (VBS). The vertebrobasilar system (VBS) is particularly important because it supplies the posterior circulation of the brain [1,2]. The VBS supplies blood and glucose to the spinal cord (medulla spinalis), brainstem (truncus cerebri), cerebellum, thalamus, inferior temporal lobe (pars inferior lobi temporalis) and internal occipital lobe of the cerebellum (pars interna occipitalis cerebri [3,4,5] and is responsible for vision, body coordination, body balance, consciousness and a large number of human physiological functions. In this region, atherosclerotic manifestations with atheromatous plaques with extremely serious consequences including artery blockage and cerebrovascular ischemia most often occur. Anatomical variations of the VBS are numerous and a large number of them are benign. It is assumed that these anomalies develop due to some errors during embryonic development. Clinically, the vertebral arteries (VA) are divided into 4 segments. The first segment (V1) starts from its origin in the subclavian artery to the transverse process of C6, the second segment (V2) from starts from C6 to the transverse process of C2, the third (V3) from C2 to the foramen magnum, and the fourth (V4) forms the foramen magnum at the vertebrobasilar junction

Item Type: Article
Uncontrolled Keywords: Anatomical variations of the vertebrobasilar system (VBS).
Subjects: R Medicine > R Medicine (General)
Divisions: Faculty of Medicine, Health and Life Sciences > School of Medicine
Depositing User: Unnamed user with email zshi@unite.edu.mk
Date Deposited: 25 Dec 2025 22:44
Last Modified: 25 Dec 2025 22:44
URI: http://eprints.unite.edu.mk/id/eprint/2276

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