Inferior anterior cerebellar artery

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Bottom view of the brain with arterial blood vessels.
On both sides of the severed in the representation of the spinal cord (the butterfly-shaped structure), the vertebral artery , after which the confluence of basilar artery which is anterior inferior cerebellar artery , the first side branch.

The inferior anterior cerebellar artery ( Latin for "lower anterior cerebellar artery"; in clinical jargon also AICA , after English anterior inferior cerebellar artery ) is a pair of arterial blood vessels and one of the vessels supplying the brain . As a rule, it is the weakest in caliber of the three cerebellar arteries. It emerges from the basilar artery and crosses (80%) or undercrosses (20%) the abducens nerve . Then it runs between the trigeminal nerve and the facial and vestibulocochlear nerves to the flocculus . Part of the anterior cerebellar hemispheres and the lateral ( lateral ) pons belong to their supply area . Usually (in about 85% of cases) the arteria labyrinthi , which supplies the membranous labyrinth of the organ of equilibrium and the sensory cells of the inner ear , is a branch of the inferior anterior cerebellar artery .

literature

  • Theodor H. Schiebler, Walter Schmidt, Karl Zilles: Anatomie. Cytology, histology, history of development, macroscopic and microscopic human anatomy. 7th, corrected edition. Springer, Berlin et al. 1997, ISBN 3-540-61856-2 .
  • Michael Schünke , Erik Schulte , Udo Schumacher : Prometheus. Anatomy Learning Atlas. Head, Neck and Neuroanatomy. 2nd, revised and expanded edition. Thieme, Stuttgart 2009, ISBN 978-3-13-139542-9 , p. 324 f.