Cerebellum Flashcards Preview

Neuroanatomy > Cerebellum > Flashcards

Flashcards in Cerebellum Deck (13):
1

Functions

mid-course corrections of movement

2

Pathologies

incoordination (dysarthria, dysmetria, dysdiaochokinesis), movement tremor

3

From where does the cerebellum receive input from?

muscles and motor cortex/brain stem

4

Where does cerebellum send its output?

to the motor cortex/brain stem

5

Describe how the cerebellum interprets things

Motor commands are compared with proprioceptive (muscle) feedback

6

What are the two functional regions of the cerebellum?

medial and lateral cerebellum

7

What structure is in the medial cerebellum?

vermis, deep cerebellar nuclei (fastigial)

8

Where does the medial cerebellum receive input from?

vestibular nuclei
Output to: vestibular nuclei to control balance

9

dentate nucleus is found where?

lateral cerebellum

10

input/output of cerebellum

output: pre motor cortex to control motor planning, initiation and timing of movements
input: contralateral motor cortex

11

Superior cerebellar peduncle

contains mostly efferents which decussate under the superior colliculi of the midbrain and project to contralateral thalamus

12

middle cerebellar peduncle

mostly afferent fibers; largest of the peduncles and is the only one visible from the surface of the brain stem

13

Inferior cerebellar peduncle

mostly afferents, arise from locations including Clarke's nucleus of T spine