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anatomy block 4 > Cerebellum > Flashcards

Flashcards in Cerebellum Deck (51)
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1

tf Cerebellum give rise to descending motor pathways. 

Cerebellum does not give rise to descending motor pathways. Ø

2

tf Damage to the cerebellum or its pathways DOES cause paralysis

Damage to the cerebellum or its pathways DOES NOT cause paralysis

3

Input to cerebellum is

sensory

4

Output of cerebllum

travels to motor structures

5

 rate, range, direction or accuracy of motor movements.

is disturbed by damage to the cerebellum

6

cerebellum

modulates motor output

7

in addition to motor output cerebllum

modulates complex behavioral and cognitive functions

8

receives and processes vestibular information

flocculonodular lobe

9

nodulus is

medial  flocculonodular

10

flocculus is 

flocculus is lateral part of flocculonodular lobe

11

tf flocculonodular lobe is post to post lobe

ant to it

12

posterior lateral fissure

sep flocculonodular lobe and posterior lobe

13

Lateral Hemisphere

forms the bulk of the cerebellum

14

Paravermis:

Paravermis: R and L zones adjacent to the vermis

15

highly convoluted, forming the cerebellar folia

cerebellum

16

Molecular layer

contains local circuit neurons and abundant axons and dendrites.

17

.Purkinje cell layer (middle layer):

formed by a single layer of large neurons called Purkinje cells(PCs)

18

Granular layer (deep layer):

composed mainly of small granule cells, but also contains other cell types.

19

t The white matter core of the cerebellum is t

he location of the deep white matter cerebellar nuclei (DCN).

20

Buried within the white matter of the cerebellum

deep cerebellar nuclei (DCN)

21

most medial of deep cerebellar nuclei (DCN)

 receives projections from vermis

Fastigial nucleus •

22

lateral to fastigial n. 

receives projections from paravermis

Globose nucleus

 

23

Emboliform nucleus 

lateral to globose n

receives projections from paravermis

24

Dentate nucleus

• most lateral •

receives projections from lateral hemisphere

25

tf body parts are epresented continuously in the cerebllar cortex

body parts are not represented continuouslyin the cerebllar cortex

26

fractured somatotopy

body part is represented in several locations on cerebellar cortexx

27

trunk is represented in

the midline region (vermis) of cereblar cortex

28

Label wat is missing on cerebllar cortex

29

30

Inferior Cerebellar Peduncle

afferents to cerebellum from spinal cord & medulla.