Labyrinthine artery

Labyrinthine artery is a branch of the anterior inferior cerebellar artery or the basilar artery that supplies the inner ear. It is also known as the internal auditory artery.

Anatomy

The labyrinthine artery arises from the anterior inferior cerebellar artery (AICA) in about 85% of people, and directly from the basilar artery in the remaining 15%. It travels in the internal auditory meatus along with the facial nerve and the vestibulocochlear nerve.

Clinical significance

The labyrinthine artery is the only blood supply to the inner ear, making it critical for hearing and balance. Occlusion of this artery can lead to sudden sensorineural hearing loss and vertigo, a condition known as labyrinthine infarction.

See also

• Anterior inferior cerebellar artery
• Basilar artery
• Inner ear
• Sudden sensorineural hearing loss
• Vertigo

External links

• Medcyclopaedia - Labyrinthine artery

Labyrinthine artery Resources
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