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Brain: Crus cerebri
Gray689
Superficial dissection of brain-stem. Ventral view. ("Cerebral peduncle" visible in red at center-right.)
Cn3nucleus
Section through superior colliculus showing path of oculomotor nerve. (Crus cerebri labeled at lower left.)
Latin pedunculus cerebri
Gray's subject #188 800
Part of
Components
Artery
Vein
BrainInfo/UW hier-478
MeSH Cerebral+Peduncle

The cerebral peduncle, by most classifications, is everything in the mesencephalon except the tectum. The region includes the midbrain tegmentum, crus cerebri, substantia nigra and pretectum. The peduncles are also known as the "crus cerebri".

In the cerebral peduncular loop fibers from motor areas of the brain project to the cerebral peduncle and then project to various thalamic nuclei.

See also[]

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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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