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Neurology > Cerebellum > Flashcards

Cerebellum Flashcards

1
Q

Largest part of hindbrain

A

Crebellum

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2
Q

Structure that seperates cerebellum fron cerebral lobes

A

Tentorium cerebelli

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3
Q

2 big parts of cerebellum

A

2 cerebellar hemispheres

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4
Q

Name of narrow median strip between cerebellar hemispheres

A

Vermis

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5
Q

Name of 3 peduncles that connect cerebellar hemispheres to parts of brainstemn

A

Superior cerebellar peduncle
Middle cerebellar peduncle
Inferior cerebellar peduncle

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6
Q

Superior cerebellar peduncle enters in…

A

Midbrain

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7
Q

Middle cerebellar peduncles contains fiber from …

A

Pons

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8
Q

Inferior cerebellar peduncle connects with…

A

Medulla

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9
Q

What structure present on surface of cerebellm

A

Sulci

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10
Q

Structure that lie between sulci

A

Folia

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11
Q

4 cerebellar nuclei within white matter

A

Dentate nuclei
Enboliform nuclei
Globose nuclei
Fastigial nuclei

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12
Q

What division of the cerebellum done by horizontal fissure

A

Superior and inferior halves

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13
Q

What division of the cerebellm done by the primary fissure

A

Small anterior lobe

Large posterior lobe

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14
Q

Structures in inferior vermis

A

Tuber vermis
Pyramid
Uvula
Nodule

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15
Q

Composition of flocculonodular lobe

A 
2 flocculi (bulbous xtremety of projecting white matter capped with grey matter 0
Nodule
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16
Q

3 main functional divisions

A

Vestibulocerebellum with flocculonodular lobe

Spinocerebellum with vermis+intermediate zone

Cerebrocerebellum with lateral zones of cerebellar hemispheres

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17
Q

Spinocerebellum function

A

Motor execution

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18
Q

Cerebrocerebellum and vestibulocerebellum functions

A

Motor planning

Balance and eyes movement

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19
Q

Largest functional division

A

Cerebrocerebellum

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20
Q

Cerebrocerebellum inputs from … output to …

A

Inputs from cerebral cortex and pontine nucei

Output to thalamus and red nucleus

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21
Q

Function of cerebrocerebellum division

A

Planning movement
Motor learning
Regulation of coordination and muscle activation
Visually guided movement

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22
Q

Function of spinocerebellum

A

Regulate body movement
Error correction
Propioceptiie informatiom reception

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23
Q

Vestibulocerebellum function

A

Control balance and occular reflex

Fixation on target

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24
Q

Principal region of cerebellum concerned with postural adjustement

A

Vermis

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25
Q

Is cerebellum posterior or anterior to 4th ventricle

26
Q

Structure that seperates cerebrum from cerebellum

A

Tentorium cerebelli

27
Q

Functions of cerebellum

A

Coordination , precision of motor activity

Motor learning

28
Q

Blood supply of cerebellum

A

Posterior inferior cerebellar artery
Superior cerebellar artery
Anterior inferior cerebellar artery

29
Q

3 parts of cerebellum

A

Vermis

2 hemispheres

30
Q

Most caudal part of cerebellum

31
Q

What structurrd form the roof of the 4 th bentricle

A

Superior and inferior medullary velum

32
Q

Cerebellum functions

A

Regulation of impulses

coordination

33
Q

Origin of cerebellum

A

Rhombencephalon

34
Q

Central and vertical structure protruding from superior surface of cerebellum and run anteroposteriorly

A

Superior vermis

35
Q

Three main lobes

A

Anterior lobe
Posterior lobe
Flocculonodular

36
Q

What structure does the inferior cerebellar peduncle connect to each other.
What tract does it use

A

The medulla and spinal cord to the cerebellum

Spinocerebellar tract

37
Q

What structure does the middle cerebellar peduncle connect together


A

The pons and cerebellum

38
Q

What are the three main fissures of the cerebellum

A

Horizontal fissure
primary fissure
retrotonsillar fissure

39
Q

How does the primary fissure separate the cerebellum

A

Into anterior and posterior lobe

40
Q

What are the three lobes of the cerebellum

A

Anterior lobe
posterior lobe
flocculo nodular lube

41
Q

Function of anterior lobe of the cerebellum

A

Unconscious proprioception

42
Q

Unction of posterior lobe of cerebellum

A

Fine motor coordination

Inhibition of unvoluntary movement via inhibitory neurotransmitter like GABA

43
Q

Flocculonodular lobe part

A

Central part -> nodule

2 lateral parts -> flocculi

44
Q

Flocculus function

A

Receives input frin inner ear vestibular system and regulates balance
Involved in control of eye movemetn

45
Q

Nodule of vermis function

A

Connect both flocculus

46
Q

Flocculonodular lobe function

A

Maintain balance

Vestibulo occular reflex

47
Q

Vermis function

A

Senses of touch and propioception

Hearing, vision and balance from body

48
Q

What are the four main nuclei of the cerebellum

A

Dentate nuclei
Globose nuclei
Emboliform nuclei
Fastigial nuclei

49
Q

Blood supply of cerebellum

A

2 vertebral arteries

50
Q

Embriologic origin of cerebellum

A

Metencephalon

51
Q

Three functional divisions of cerebellum

A

Vestibular cerebellum
spinocerebellul
cerebrocerebellum

52
Q

What lobe is present in the vestibulocerebellum

A

Flocculonodular responsible for eye and balance

53
Q

What’s zone are presents in the spinocerebellar

A

Vermis an intermediate zone

Responsible for motor is a cushion body movements error correction

54
Q

What part is present in the cerebrocerebellum

A

 lateral divisions of the cerebellum

involved in motor planning , motor learning

55
Q

How can you tell that someone has an issue with the Vermis of the cerebellum

A

Would not be able to stand or walk straight

56
Q

From where to do to vertebral arteries enter the cerebellum

A

Through the foramen tranversorum

57
Q

What are miserable or branches of the vertebral arteries

A

Posterior inferior inferior cerebellar artery which then go branch and form basilar artery -> Superiors crebellar arteries

58
Q

Symptoms of damage of the cerebrocerebellum and spinocerebellar

A

Hypotonia of muscles
hyporeflexia
Asthenia
ataxia

59
Q

What are the components of ataxia in damage of cerebrocerebellum in spinocerebellar

A 
Dysmetria 
intention tremor
decomposition of complex movements 
rebounds phenomenon 
dysdiadochokinesia
Nystagmus
Dysarthria 
unsteady gait
60
Q

Manifestation of flocculonodular damage

A

Swaying during standing
Unsteady gait
wide base when walking

61
Q

Composition of inferior vermiis

A

Tuber vermis
pyramid
uvula
nodule

62
Q

What are the inputs and outputs of the cerebrocerebellum division

A

Input from cerebral cortex and pontine nuclei

Output to thalamus and red nucleus

Neurology (31 decks)

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