posterior inferior cerebellar artery


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pos·te·ri·or in·fe·ri·or cer·e·bel·lar ar·ter·y

[TA]
origin, intracranial part of vertebral artery; distribution, lateral medulla, choroid plexus of fourth ventricle, and cerebellum; anastomoses, superior cerebellar and anterior inferior cerebellar artery; gives rise to posterior spinal artery [TA], cerebellar tonsillar branch [TA], and choroidal branch to fourth ventricle [TA].

pos·te·ri·or in·fe·ri·or cer·e·bel·lar ar·te·ry

(pos-tēr'ē-ŏr in-fēr'ē-ŏr ser'ĕ-bĕl'lar ahr'tĕr-ē) [TA]
Origin, intracranial part of vertebral artery;distribution, lateral medulla, choroid plexus of fourth ventricle, and cerebellum; anastomoses, superior cerebellar and anterior inferior cerebellar artery; gives rise to posterior spinal artery [TA], cerebellar tonsillar branch [TA], and choroidal branch to fourth ventricle [TA].
Synonym(s): arteria inferior posterior cerebelli.

posterior inferior cerebellar artery

A branch of the vertebral arteries; it runs dorsally along the edge of the hindbrain and supplies the choroid plexus of the fourth ventricle, the lateral hindbrain, the inferior cerebellar peduncle, and posterior regions of the cerebellum.
See: brain (Major arteries of the brain) for illus.
See also: artery
References in periodicals archive ?
The right posterior inferior cerebellar artery (PICA) was not well seen and was thought to be compressed by surrounding hemorrhage, involved with vasospasm or thrombosed.
[sup][11] In the initial operation, due to the distance of the posterior inferior cerebellar artery (PICA), a small amount of dissection just distal to the PICA was left.
The superficial temporal artery, occipital artery, and external carotid artery can be used to increase blood flow to superior cerebellar artery, posterior cerebral artery, posterior inferior cerebellar artery, or anterior inferior cerebellar artery [10].

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