Cerebellum

Question 1

Describe Anatomy of Cerebellar Cortex

Answer 1

Interneuron Layer –> Purkinje Cell Bodies Layer –> Interneuron Layer –> White Matter –> Deep Cerebellar Nuclei

Question 2

Describe what area of cerebellum controls what area of body/ what type of movement in general

Answer 2

Paravermis/Vermis (Spinocerebellum): Midline Muscles, gross movements of limbs
Lateral Hemispheres (Cerebrocerebellum): Distal Extremities, Fine/distal movements
Flocculonodular Lobes (Vestibulocerebellum): Vistibular system, eye movements

Question 3

Lateral Hemispheres of Cerebellum

Answer 3

Involved in planning movements

Especially learned, skillful movements that become more automatic and precise with practice

Question 4

Paravermal Region (Intermediate Zone) of Cerebellum

Answer 4

Can influence LMNs via that CST and RuST

Compares actual movement with intended movement

Question 5

Vermis of Cerebellum

Answer 5

Makes Postural Adjustments
Major outputs to the vestibular organs and reticular formation
Controls and adjusts antigravity postural corrections and postural muscle tone

Question 6

Midline damage to Cerebellum –>

Answer 6

Postural Instability

Question 7

Lateral damage to Cerebellum –>

Answer 7

Limb ataxia

Question 8

Folcculonodular damage to Cerebellum –>

Answer 8

Eye movements affected