Clinical Evaluation of Vertebral Basilar Insufficiency

Slade Jr., Walter R.
May 1980
Angiology;May1980, Vol. 31 Issue 5, p359
Academic Journal
The article presents information on the clinical evaluation of vertebral basilar insufficiency. The term vertebral basilar insufficiency indicates the mechanism of production and the symptoms resulting from impaired circulation in the vertebral basilar system. Although the gross of the supply of the vertebral basilar system is known, the regional supply is not usually appreciated. The medulla, pons, midbrain, and cerebellum are infused by the paramedian and the long and short circumferential branches. The medial diencephalon, substantia nigra, red nucleus, ventromedial thalamus, subthalamus, the occipital lobe, and the posterior and inferior parts of the temporal lobe are supported by the basilar and the posterior cerebral arteries. The basilar and posterior cerebral arteries comprise a part of the circle of Willis which is the site of many variations.


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