Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Neuro Final > Cerebellum > Flashcards

Cerebellum Flashcards

1
Q

cerebellum

A

adjusts output of UMN pathwayscontrol rate, range, and force of ongoing motor movementsmaintenance of stable postureplanning and timing of complex movement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

rate, range, and force

A

coordinationof ongoing movements

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what cerebellum does NOT do

A

issue motor commands-Dx not chacterized by paresis or paralysisdoes not act in awarenessno loss of conscious sensory function

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

folia

A

gyri of the cerebellum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

vermis

A

medial region of cerebellum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

cerebellar hemispheres

A

left and right

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

primary fissure

A

splits anterior and posterior lobes of cerebellum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

lobes

A

anterior/posteriorbest identifed by mid-sagittal view

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

nodulus

A

viewed anteriorly, part of the vermisattached to two flocculi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

flocculonodular lobe

A

nodulus and two flocculi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

tonsil

A

viewed anteriorly, below the noduluscan be moved to foramen magnum with increased ICP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

blood supply of cerebellum

A

superior cerebellar arteriesanterior inferior cerebellar arteriesposterior inferior cerebellar arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

cerebellar peduncles

A

inferior - inputmiddle - inputsuperior - outputall medially

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

inferior peduncles

A

cerebellar input-spinocerebellar tracts-vestibular input and from olive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

middle peduncles

A

ALL input-pontocerebellar fibers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

superior peduncles

A

cerebellar output

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

cell bodies of cerebellum

A

externally

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

arbor vitae

A

white matter to and from cerebellar cortex–looks like tree

19
Q

outer cerebellar cortex

A

lots of cell processes-inner cerebellar cortex - cell bodies

20
Q

molecular layer

A

outer cerebellar cortex

21
Q

purkinje neurons

A

make up purkinje cell layer-one cell thick, nice line-huge dendritic trees-huge cell bodydeep to molecular layerabove granule cell layer

22
Q

granule cell layer

A

just above the arbor vitae

23
Q

cerebellar hemispheres control

A

ipsilateral body

24
Q

brodmans areas 4 and 6 and 8

A

equivalent to primary, supplementary, and premotor cortices

25
Q

3 division of cerebellum

A

named according to afferent sourcevestibulocerebellum

26
Q

vestibulocerebellum

A

input - from vestibular apparatus and nucleito flocculonodular nodeoutput - fastigial nucleus

27
Q

flocculonodular node

A

vestibulocerebellum-receive from vestibular apparatus and nucleicoordinate proximal muscles, maintain body posture, coordinate eye movements

28
Q

fastigial nucleus

A

output of vestibulocerebellum

29
Q

targets of fastigial

A

vestibular and reticular nucleiinvolved in vestibulocerebellum

30
Q

cerebrocerebellum

A

input - cerebrum areas 4, 6-from pontine nuclei, decussates to contralateral cerebellummost of lateral hemispheres of cerebellumplanning, timing, initiation of complex movements - piano and baseball

31
Q

dentate nucleus

A

nucleus of cerebrocerebellum

32
Q

targets of cerebrocerebellum

A

thalamus back to cortex

33
Q

spinocerebellum

A

to the vermis and paravermal regionsmoothness, accuracy, coordination of voluntary movements-rate, range, force of voluntary movements”comparator”

34
Q

afferents to spinocerebellum

A

proprioception-same as DCML-unconscious4 tracts from cord-A/P spinocerebellar tracts (lower limb)-rostral spinocerebellar and cuneocerebellar (upper limb)also muscles of mastication - trigeminocerebellar tract

35
Q

spinocerebellum

A

influence upper motor systemslateral - LCST and rubrospinalmedial - vestibulospinal and reticulospinal

36
Q

lateral influence

A

by paravermal regions of cerebellar cortex-damage to paravermal regions - deficits in distal limb musculature

37
Q

medial influence

A

by vermis of cerebellar cortex-damage to vermis - axial muscles-deficit in postural muscles

38
Q

damage to vermis

A

wide base stance

39
Q

damage to paravermal region

A

change in rate, range, force of distal limb musculature

40
Q

cerebellar lesions

A

ipsilateral motor ataxia-uncoordinated movementdysmetriaintention tremor (different from parkinsons) - occurs WITH voluntary movementdysdiadochokinesia

41
Q

midline lesions

A

unsteady gaittruncal swayuncoordinated eye movementwide based stance

42
Q

lateral lesions

A

ataxia of limbspast pointingdysdiadochokinesia

43
Q

alcohol

A

impacts cerebellum-slows these things down-mimics cerebellar lesions

Neuro Final (20 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions