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Superior cerebellar penduncle

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Brain: Superior cerebellar penduncle
Gray704
Sagittal section of the cerebellum, near the junction of the vermis with the hemisphere. (Superior peduncle labeled at upper right.)
Gray705
Dissection showing the projection fibers of the cerebellum. (Superior peduncle labeled at center top.)
Latin pedunculus cerebellaris superior
Gray's subject #187 792
Part of
Components
Artery
Vein
BrainInfo/UW ancil-1289712953
MeSH [1]

The superior cerebellar peduncles (brachia conjunctiva), two in number, emerge from the upper and medial part of the white matter of the hemispheres and are placed under cover of the upper part of the cerebellum.

They are joined to each other across the middle line by the anterior medullary velum, and can be followed upward as far as the inferior colliculi, under which they disappear.

Below, they form the upper lateral boundaries of the fourth ventricle, but as they ascend they converge on the dorsal aspect of the ventricle and thus assist in roofing it in.

All fibers (except vestibular fibers to the vestibular nuclei through the inferior cerebellar peduncle) carrying information from the spinal cord to the cerebellum (ventral spinocerebellar tract) pass through the superior cerebellar peduncles.

Additional imagesEdit

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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 As such, some of the information contained herein may be outdated.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.


Mesencephalon (midbrain)

cerebral peduncle: midbrain tegmentum (periaqueductal gray, ventral tegmentum, nucleus raphe dorsalis), pretectum, substantia nigra, red nucleus, pedunculopontine nucleus, medial longitudinal fasciculus, medial lemniscus, rubrospinal tract, lateral lemniscus

tectum: corpora quadrigemina, inferior colliculi, superior colliculi

cerebral aqueduct: oculomotor nucleus, trochlear nucleus, Edinger-Westphal nucleus

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