Superior cerebellar artery

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Superior cerebellar artery
CerebellumArteries.jpg
The three major arteries of the cerebellum: the SCA, AICA, and PICA.
Circle of Willis en.svg
The arterial circle and arteries of the brain. (Superior cerebellar artery labeled at center right.)
Details
Latin Arteria cerebelli superior
Supplies Cerebellum
Source
basilar artery
Superior cerebellar veins
Identifiers
Gray's p.580
Dorlands
/Elsevier
a_61/12156101
TA A12.2.08.025
FMA FMA:50573
Anatomical terminology

The superior cerebellar artery (SCA) arises near the termination of the basilar artery.[1]

Structure[edit]

It passes lateralward, immediately below the oculomotor nerve, which separates it from the posterior cerebral artery, winds around the cerebral peduncle, close to the trochlear nerve, and, arriving at the upper surface of the cerebellum, divides into branches which ramify in the pia mater and anastomose with those of the anterior and posterior inferior cerebellar arteries.

Several branches are given to the pineal body, the anterior medullary velum, and the tela chorioidea of the third ventricle.

Function[edit]

The arteries of the base of the brain. Superior cerebellar artery labeled near center. The temporal pole of the cerebrum and a portion of the cerebellar hemisphere have been removed on the right side (left half of diagram). Inferior aspect (viewed from below).

The artery supplies:

  • Superior half of the cerebellum
  • Parts of the midbrain

Clinical significance[edit]

The SCA is frequently the cause of trigeminal neuralgia, where it compresses the trigeminal nerve causing lancinating pain in the distribution of this nerve on the patient's face. However, at autopsy, 50% of people without trigeminal neuralgia will also be noted to have vascular compression of the nerve.[2]

See also[edit]

This article uses anatomical terminology; for an overview, see anatomical terminology.

References[edit]

This article incorporates text from a public domain edition of Gray's Anatomy.

  1. ^ Refer to diagrams.
  2. ^ Handbook of Neurosurgery, Greenberg, M.D., Thieme 2006
  • Handbook of Neurosurgery, Greenberg, M.D., Thieme 2006

External links[edit]