Basilar artery

Basilar Artery The basilar artery is a major blood vessel in the human brain. It is formed by the union of the two vertebral arteries and provides oxygenated blood to the pons, cerebellum, and the posterior part of the cerebrum.

Structure

The basilar artery is a midline structure that begins at the junction of the two vertebral arteries at the level of the medulla oblongata. It travels superiorly along the anterior surface of the pons, ending at the level of the midbrain, where it bifurcates into the two posterior cerebral arteries.

Function

The basilar artery is part of the circle of Willis, a circulatory anastomosis that provides collateral circulation to the brain. It gives off several branches that supply blood to various parts of the brain, including the anterior inferior cerebellar artery, superior cerebellar artery, and pontine arteries.

Clinical significance

Blockage of the basilar artery, known as basilar artery syndrome, can lead to severe neurological deficits, including loss of consciousness, paralysis, and even death. This condition is considered a medical emergency and requires immediate treatment.

See also

• Circle of Willis
• Vertebral artery
• Posterior cerebral artery

External links

• Basilar Artery at Medical Images

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