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|Artery: Anterior inferior cerebellar artery|
|The three major arteries of the cerebellum: the SCA, AICA, and PICA (anterior inferior cerebellar artery is AICA)|
|Diagram of the arterial circulation at the base of the brain (anterior inferior cerebellar artery labeled at lower right)|
|Latin||Arteria cerebelli inferior anterior|
|Gray's||subject #148 580|
|Vein||Inferior cerebellar veins|
It arises from the basilar artery at the level of the junction between the medulla oblongata and the pons in the brainstem. It passes backward to be distributed to the anterior part of the undersurface of the cerebellum, anastomosing with the posterior inferior cerebellar branch of the vertebral artery. It supplies the anterior inferior quarter of the cerebellum.
Occlusion of AICA results in lateral pontine syndrome, also known as AICA syndrome. The symptoms include sudden onset vertigo and vomiting, nystagmus, falling to the side of the lesion (due to damage to vestibular nuclei), ipsilateral loss of sensation of the face (due to damage to principal sensory trigeminal nucleus), ipsilateral facial paralysis (due to damage to the facial nucleus) and ipsilateral hearing loss and tinnitus (due to damage to the cochlear nuclei).
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
- SUNY Labs 28:09-0224
- Dictionary at eMedicine anterior+inferior+cerebellar+artery
- Roche Lexicon - illustrated navigator, at Elsevier 13048.000-1
List of arteries of head and neck
|Posterior and ascending: CC/EC|
|Terminal, superficial temporal: CC/EC|
|Terminal, maxillary: CC/EC||
1st part: anterior tympanic - deep auricular - middle meningeal (superior tympanic) - accessory meningeal - inferior alveolar (mylohyoid)
|portions #1 and 2: CC/IC|
|cavernous portion/ophthalmic: CC/IC||
orbital group: lacrimal (lateral palpebral) - supraorbital - posterior ethmoidal - anterior ethmoidal - medial palpebral - supratrochlear - dorsal nasal
|cerebral portion: CC/IC|
|vertebral artery: SC|
|thyrocervical trunk: SC|
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