CH05: Ataxia and Cerebellar Function

Question 1

components of Guillain- Mollaret triangle (p. 119)

Answer 1

Red nucleus, Inferior Olive, Dentate nucleus

Question 2

localization for occulopalatal tremor (p. 119)

Answer 2

Central tegmental fasciculus

Question 3

inactivation of this delays initiation of movement (p. 119)

Answer 3

dentatal neurons

Question 4

in charge of making volitional oscillations (p. 119)

Answer 4

interpositus neurons

Question 5

controls antigravity and other muscle synergies in standing and walking (p. 119)

Answer 5

fastigal nucleus

Question 6

cerebellum is what percent of the brain (p. 119)

Answer 6

10%

Question 7

how many percent of neurons are in the cerebellum (p. 119)

Answer 7

50%

Question 8

two types of inhibitory neurons in the cerebellum (p. 120)

Answer 8

stellate cells and basket cells

Question 9

main output of the cerebellar cortex (p. 120)

Answer 9

Purkinje cells

Question 10

predominent afferent input of the cerebellum (p. 121)

Answer 10

mossy fibers

Question 11

only cells that are excitatory (p. 121)

Answer 11

granule cells

Question 12

patients with cerebellar lesions unable to hold eccentric positions of gaze (p. 123)

Answer 12

saccadic substitution

Question 13

dysequilibrium sundrome localization; which part of cerebellum (p. 123)

Answer 13

anterior vermis