CMD 377 Lecture Notes - Lecture 15: Inferior Cerebellar Peduncle, Superior Cerebellar Peduncle, Middle Cerebellar Peduncle
Document Summary
Anatomy and function of cerebellum major fissures and lobes. Posterolateral fissure: separates the flocculonodular lobe from the body of the cerebellum. Flocculonodular lobe: medial portion (nodulus) and lateral portion (flocculus, involved in the maintenance of equilibrium and coordination of eye movement. Primary fissure: separates the anterior and posterior lobes. Anatomy and function of cerebellum longitudinal zones. Vermis: most medial zone, involved in the regulation of posture and of muscle tone and posture during stereotyped movements. Intermediate zone (paravermal zone: adjacent to the vermis in each hemisphere, involved in regualtion of posture (distal muscles) and correction of movements. Lateral zone: involved in the planning and coordination of voluntary movements (especially learned, skillful movements) Attached to the brainstem by 3 peduncles: superior cerebellar peduncle. Carry efferents from cerebellum to other parts of the brain: middle cerebellar peduncle. Carry afferents from pontine nuclei to cerebellum: inferior cerebellar peduncle. Carry afferents from the spinal cord and brainstem to cerebellum.
