W03_05 Motor Control 3: Cerebellum Flashcards Preview

Brain and Behaviour > W03_05 Motor Control 3: Cerebellum > Flashcards

Flashcards in W03_05 Motor Control 3: Cerebellum Deck (13)
Loading flashcards...
1

what volume proportion of the brain does the cerebellum hold?

10%

2

what proportion of neurons does the cerebellum hold?

50%

3

what is the general function of the cerebellum?

refines movements and makes them better. takes input from motor planning and modifies according to sensory input. does not alter strength or sensory perception.

4

name 4 general functions that the cerebellum assists

limb movements
eye movements
speech
balance

5

spinocerebellum consists of which two parts?

vermis and paravermis

6

function of the spinocerebellum?

descending motor systems (i.e. proprioception, stance, posture)

7

function of the cerebrocerebellum?

to motor/premotor cortex;
planning
learning
fine movement of hand

8

function of the vestibulocerebellum?

to vestibular nuclei;
balance
vision

9

neurons of proprioceptors follow which tract up the spinal cord?

spinocerebellar

10

where do outputs from the vestibuloCB and spinoCB project to?

ipsilateral extraocular nuclei for coordinating eyes with head mvmt;
ipsilateral reticulospinal and vestibulospinal tracts for coordinating balance and locomotion

11

pathway of cerebrocerebellum output?

dentate nucleus (cerebrocerebellum);
sup cereb ped.;
red nucleus;
VL thalamus synapse;
motor cortex;

12

name classic symptoms of cerebellar disease

ataxia
dysmetria
intention tremor
dysdiadochokinesia
nystagmus

13

most of the time, cerebellar lesions present on which side of the body?

ipsilateral