the Cerebellum Flashcards
1
Q
Anatomical lobes of the cerebellum
A
- primary fissure
2. posterolateral fissure
2
Q
cerebellar zones
A
- vermis
- intermediate
- lateral hemispheres
3
Q
functional divisions of the cerebellum
A
- cerebrocerebellum
- Spinocerebellum
- Vestibulocerebellum
4
Q
cerebrocerebellum
A
- largest division formed by lateral hemispheres
- involved in planning movements and motor learning
- recieves input from cerebral cortex and pontine nucleus
5
Q
spinocerebellum
A
- comprised of vermis and intermediate zone of the cerebellar hemisphere
- recieves proprioceptive information
- regulating body movements by allowing error correction
6
Q
Blood supply of the cerebellum
A
recieves blood from three paired arteries
- Superior cerebellar artery (SCA)
- Anterior inferior cerebellar artery (AICA)
BOTH ARE BRANCHES OF THE BASILAR ARTERY
- Posterior inferior cerebellar arterior (PICA)
BRANCH OF VERTEBRAL ARTERY
7
Q
venous drainage of cerebellum
A
superior and inferior cerebellar veins
8
Q
manifestations of cerebellar dysfunction
A
- D-ysdiadochokinesia - difficulty carrying out rapid alternating movements
- A taxia
- Nystagmus
- Intension tremor
- Scanning speech
- Hypotonia