Inferior cerebellar peduncle

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Inferior cerebellar peduncle
Gray677.png
Scheme showing the connections of the several parts of the brain. (Inferior peduncle labeled at bottom right.)
Gray694.png
Section of the medulla oblongata at about the middle of the olive. (Inferior peduncle labeled at upper right.
Details
Latin pedunculus cerebellaris inferior
Identifiers
Gray's p.775
NeuroNames hier-778
NeuroLex ID Inferior cerebellar peduncle
Dorlands
/Elsevier
p_10/12622504
TA A14.1.04.013
FMA 72615
Anatomical terms of neuroanatomy

The upper part of the posterior district of the medulla oblongata is occupied by the inferior cerebellar peduncle (restiform body), a thick rope-like strand situated between the lower part of the fourth ventricle and the roots of the glossopharyngeal and vagus nerves.

Each cerebellar inferior peduncle connects the spinal cord and medulla oblongata with the cerebellum, and comprises the juxtarestiform body and restiform body.

Important fibers running through the inferior cerebellar peduncle include the dorsal spinocerebellar tract and axons from the inferior olivary nucleus, among others.

Function[edit]

The inferior cerebellar peduncle carries many types of input and output fibers that are mainly concerned with integrating proprioceptive sensory input with motor vestibular functions such as balance and posture maintenance. It consists of the following fiber tracts entering cerebellum:

This peduncle also carries information leaving cerebellum: from the Purkinje cells to the vestibular nuclei in the dorsal brainstem located at the junction between the pons and medulla oblongata.

See also[edit]

Additional images[edit]

References[edit]

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

External links[edit]