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Basilar artery

Artery that supplies the brain with blood

Field	Value
Name	Basilar artery
Latin	arteria basilaris
Image	Blausen_0114_BrainstemAnatomy.png
Caption	The basilar artery lies at the front of the brainstem in the midline and is formed from the union of the two vertebral arteries.
Image2	Circle of Willis en.svg
Caption2	Diagram of the arterial circulation at the base of the brain (inferior view). The basilar artery terminates by splitting into the left and right posterior cerebral arteries.
Width	335px
BranchFrom	Vertebral arteries
BranchTo	Pontine arteries
anterior inferior cerebellar (AICA)
Paramedian arteries
superior cerebellar arteries
terminal posterior cerebral arteries
Supplies	Pons, and superior and inferior aspects of the cerebellum

anterior inferior cerebellar (AICA) Paramedian arteries superior cerebellar arteries terminal posterior cerebral arteries The basilar artery (U.K.: ; U.S.: ) is one of the arteries that supplies the brain with oxygen-rich blood.

The two vertebral arteries and the basilar artery are known as the vertebral basilar system, which supplies blood to the posterior part of the circle of Willis and joins with blood supplied to the anterior part of the circle of Willis from the internal carotid arteries.

Structure

The diameter of the basilar artery range from 1.5 to 6.6 mm.

Origin

The basilar artery arises from the union of the two vertebral arteries at the junction between the medulla oblongata and the pons between the abducens nerves (CN VI).

Course

It ascends along the basilar sulcus of the ventral pons. It divides at the junction of the midbrain and pons into the posterior cerebral arteries.

Branches

Its branches from caudal to rostral include:

anterior inferior cerebellar artery
labyrinthine artery (
pontine arteries
superior cerebellar artery

Clinical relevance

A basilar artery stroke classically leads to locked-in syndrome.

Additional images

File:Gray513.png|The internal carotid and vertebral arteries (Right side view) File:Circle of Willis 6.jpg|Basilar artery File:Sobo 1909 3 548.png|The arteries of the base of the brain. Basilar artery labeled below center. The temporal pole of the cerebrum and the cerebellar hemisphere have been removed on the right side. Inferior aspect (viewed from below).

References

"BASILAR | meaning in the Cambridge English Dictionary".
"basilar - WordReference.com Dictionary of English".
"Definition of basilar | Dictionary.com".
Jones, Jeremy. (27 August 2008). "Basilar artery | Radiology Reference Article | Radiopaedia.org".
(2012). "Neuroscience".
(1985). "Core text of neuroanatomy". Williams & Wilkins.
(September 2006). "Basilar artery diameter and 5-year mortality in patients with stroke". Stroke.
(2012). "Tutorials in endovascular neurosurgery and interventional neuroradiology". Springer.
(2018). "[The use of the osteopathic correction for the combined treatment and rehabilitation of the patients presenting with the vertebral artery syndrome]". Voprosy Kurortologii, Fizioterapii, I Lechebnoi Fizicheskoi Kultury.
(August 2014). "Vascular geometry of vertebrobasilar tree with and without aneurysm". Medicinski Glasnik.

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

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