From Surf Wiki (app.surf) — the open knowledge base

Posterior inferior cerebellar artery

Major artery supplying blood to the cerebellum

Field	Value
Name	Posterior inferior cerebellar artery
Latin	arteria inferior posterior cerebelli
Width	250
Image	CerebellumArteries.jpg
Caption	The three major arteries of the cerebellum: the SCA, AICA, and PICA (posterior inferior cerebellar artery)
Width2	335
Image2	Circle of Willis en.svg
Caption2	Diagram of the arterial circulation at the base of the brain (inferior view). PICA is labeled at bottom right.
BranchFrom	Vertebral artery
BranchTo	Medial branch lateral
Vein	Inferior cerebellar veins
Supplies	Cerebellum, choroid plexus of the fourth ventricle

The posterior inferior cerebellar artery (PICA) is the largest branch of the vertebral artery. It is one of the three main arteries that supply blood to the cerebellum, a part of the brain. Blockage of the posterior inferior cerebellar artery can result in a type of stroke called lateral medullary syndrome.

Supply

The PICA supplies blood to the medulla oblongata; the choroid plexus and tela choroidea of the fourth ventricle; the tonsils; the inferior vermis, and the inferior parts of the cerebellum.

Course

It winds backward around the upper part of the medulla oblongata, passing between the origins of the vagus nerve and the accessory nerve, over the inferior cerebellar peduncle to the undersurface of the cerebellum, where it divides into two branches.

The medial branch continues backward to the notch between the two hemispheres of the cerebellum; while the lateral supplies the under surface of the cerebellum, as far as its lateral border, where it anastomoses with the anterior inferior cerebellar and the superior cerebellar branches of the basilar artery.

Branches from this artery supply the choroid plexus of the fourth ventricle.

Clinical significance

A disrupted blood supply to posterior inferior cerebellar artery due to a thrombus or embolus can result in a stroke and lead to lateral medullary syndrome. Severe occlusion of this artery or to vertebral arteries could lead to Horner's Syndrome as well.

References

Sources

References

(2020-10-18). "Clinical Importance of the Posterior Inferior Cerebellar Artery: A Review of the Literature". International Journal of Medical Sciences.

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

arteries-of-the-head-and-neck

Want to explore this topic further?

Ask Mako anything about Posterior inferior cerebellar artery — get instant answers, deeper analysis, and related topics.

Research with Mako

Free with your Surf account

Content sourced from Wikipedia, available under CC BY-SA 4.0.

This content may have been generated or modified by AI. CloudSurf Software LLC is not responsible for the accuracy, completeness, or reliability of AI-generated content. Always verify important information from primary sources.

Report