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anatomy block 4 part 3 > cerebellum part 1 > Flashcards

cerebellum part 1 Flashcards

1
Q
A
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2
Q

tf Cerebellum give rise to descending motor pathways.

A

Cerebellum does not give rise to descending motor pathways. Ø

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3
Q

tf Damage to the cerebellum or its pathways DOES cause paralysis

A

Damage to the cerebellum or its pathways DOES NOT cause paralysis

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4
Q

Input to cerebellum is

A

sensory

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5
Q

Output of cerebllum

A

travels to motor structures

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6
Q

rate, range, direction or accuracy of motor movements.

A

is disturbed by damage to the cerebellum

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7
Q

cerebellum

A

modulates motor output

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8
Q

in addition to motor output cerebllum

A

modulates complex behavioral and cognitive functions

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9
Q

receives and processes vestibular information

A

flocculonodular lobe

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10
Q

nodulus is

A

medial flocculonodular

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11
Q

flocculus is

A

flocculus is lateral part of flocculonodular lobe

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12
Q

tf flocculonodular lobe is post to post lobe

A

f

ant to it

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13
Q

posterior lateral fissure

A

sep flocculonodular lobe and posterior lobe

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14
Q

Lateral Hemisphere

A

forms the bulk of the cerebellum

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15
Q

Paravermis:

A

Paravermis: R and L zones adjacent to the vermis

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17
Q

Molecular layer

A

contains local circuit neurons and abundant axons and dendrites.

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18
Q

.Purkinje cell layer (middle layer):

A

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

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19
Q

Granular layer (deep layer):

A

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

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20
Q

t The white matter core of the cerebellum is t

A

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

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22
Q

most medial of deep cerebellar nuclei (DCN)

receives projections from vermis

A

Fastigial nucleus •

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23
Q

lateral to fastigial n.

receives projections from paravermis

A

Globose nucleus

24
Q

Emboliform nucleus

A

lateral to globose n

receives projections from paravermis

25
Q

Dentate nucleus

A

• most lateral •

receives projections from lateral hemisphere

28
Q

trunk is represented in

A

the midline region (vermis) of cereblar cortex

29
Q

Label wat is missing on cerebllar cortex

A
30
Q
A
31
Q

Inferior Cerebellar Peduncle

A

afferents to cerebellum from spinal cord & medulla.

32
Q

Middle Cerebellar Peduncle

A

o Mainly afferents to cerebellum from pontine nuclei

33
Q

Superior Cerebellar Peduncle

A

Mainly efferents from the cerebellum.

34
Q

highly convoluted, forming the cerebellar folia

A

cerebellum

36
Q
A
37
Q
A
38
Q

(1.) cerebellar cortical region (2.) cerebellar nucleus/nuclei

A

Functional systems associated with the cerebellum

42
Q

Buried within the white matter of the cerebellum

A

deep cerebellar nuclei (DCN)

47
Q

primary vestibular afferents and axons of 2nd order neurons from the vestibular nucleus.

A

FN lobe and vermis

48
Q

Purkinje cells in the FN lobe mainly project

A

directly to the vestibular nuclei

49
Q

vermis project to the

A

fastigial nucleus (most) which serves as a relay to the vestibular nucleus.

Vestibulocerebellar System

50
Q

tf body parts are epresented continuously in the cerebllar cortex

A

body parts are not represented continuouslyin the cerebllar cortex

51
Q

fractured somatotopy

A

body part is represented in several locations on cerebellar cortexx

58
Q

The cerebellum is attached to the brainstem by – pairs of —– bundles comprised of — and —- axons —– the cerebellum

A

The cerebellum is attached to the brainstem by 3 pairs of fiber bundles comprised of afferent and efferent axons to/from the cerebellum

59
Q
A
63
Q

These regions are involved in processing vestibular information

A

Vestibulocerebellum

64
Q

These regions are involved in processing cerebral cortical inputs

A

Cerebrocerebellum

65
Q

These regions are involved in processing proprioceptive inputs

A

Spinocerebellum

66
Q

lateral hemisphere and dentate nucleus

A

Cerebrocerebellum

67
Q

flocculonodular lobe,

fastigial nucleus

vermis

A

Vestibulocerebellum

68
Q

vermis, paravermis

globose and emboliform nuclei

A

Spinocerebellum

69
Q

maintaining equilibrium, posture and head position

A

Vestibulocerebellar System

70
Q

uses vestibulospinal tracts

A

Vestibulocerebellar System

74
Q

primary vestibular afferents and axons of 2nd order neurons from the vestibular nucleus.

A

go thru Inferior cerebellar peduncle

75
Q

Vestibulocerebellar System Assists in coordinating eye movements with head movements via

A

connections with the motor nuclei of CN-III, -IV and -VI

76
Q

coordinating eye movements with head movements

of Vestibulocerebellar System

A

Vestibular apparatus (position of head in space) –>

vestibular nucleus –> cerebellum à vestibular nucleus

–> CN III, IV, VI via medial longitudinal fasiculus (MLF)

anatomy block 4 part 3 (7 decks)

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