archicerebellum


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Related to archicerebellum: paleocerebellum

ar·chi·cer·e·bel·lum

(ar'ki-ser'ĕ-bel'ŭm), [TA]
The small, phylogenetically oldest portion of the cerebellum, sometimes called the vestibulocerebellum because its afferents arise primarily from the vestibular ganglion and nuclei; in mammals, it is represented by four subdivisions of the cerebellum: nodulus, uvula vermis, flocculus, and lingula of cerebellum.
Synonym(s): archaeocerebellum
[archi- + L. cerebellum]

archicerebellum

/ar·chi·cer·e·bel·lum/ (ahr″kĭ-ser″ĕ-bel´um) the phylogenetically old part of the cerebellum, viz., the flocculonodular node and the lingula.

vestibulocerebellum

The phylogenically oldest part of the cerebellum, which regulates balance and eye movements.

Anatomic components
Flocculonodular lobe and adjacent vermis.

Receives
• Vestibular input from semicircular canals and vestibular nuclei;
• Visual input from superior colliculi and visual cortex via pontine nuclei, forming a cortico-ponto-cerebellar pathway.

Sends
To medial and lateral vestibular nuclei.

Lesions
Cause disturbances of balance and gait.

archicerebellum

the phylogenetically older part of the cerebellum that includes the flocculonodular lobe. Called also vestibular cerebellum.