archicerebellum


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]

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.