ACB 334 Lecture Notes - Lecture 16: Middle Cerebellar Peduncle, Cerebellar Peduncle, Deep Cerebellar Nuclei
14 Nov 2018
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Document Summary
General organization of motor system: basal ganglia (amount of movement, cerebellum (quality of movement) Timing of agonist/antagonist muscles (their initiation & termination of the muscle contraction) Planning, execution, termination, adaptation of movements and postures. Damage results in abnormalities associated w/: equilibrium (balance, postural control, coordination of voluntary movements. *alcohol affects neurotransmission in the cerebellum abnormalities are the same as being drunk. In the infratentorial fossa, covered by tentorium cerebelli. Forms the roof of the 4th ventricle in the rhomboid fossa. Cerebellar peduncles connect the brainstem to the cerebellum. Has a midline vermis and 2 lateral hemispheres. Transversely oriented fissure and folia, which are continuous across the midline. 3 lobes: anterior lobe, posterior lobe, flocculonodular lobe (nodulus + flocculus) Posterolateral fissure separates the flocculonodular lobe from the rest of the cerebellum. Easiest to appreciate grossly, but not as clinically or functionally useful. Functions of the cerebellum is divided into 3 groups based on input/output:
