Brainscape's Knowledge GenomeTM

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


See full index

Neuroanatomy > Cerebellum > Flashcards

Cerebellum Flashcards

1
Q

where in the skull is the cerebellum located

A

posterior cranial fossa

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

what type of control does the cerebellum display

A

ipsilateral

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

longitudinal divisions of the cerebellum

A
  • vermis
  • paravernal region
  • cerebellar hemispheres
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

transverse divisions of the cerebellum

A
  • anterior lobe
  • posterior lobe
  • floccunlonodular lobe
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

two main divisons of the cerebellum

A
  • primary fissure
  • posterolateral fissure
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what does the primary fissure divide

A

anterior and posterior lobes

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

what does the posterolateral fissure divide

A

the posterior and flocculonodular lobes

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

what does the superior peduncle connect the cerebellum to

A

superior pons/midbrain

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

what type of projections does the superior peduncle have

A

efferent (output)

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

what does the middle peduncle connect the cerebellum to

A

pons

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

what type of projections does the middle peduncle have

A

afferent (input)

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

what does the inferior peduncle connect the cerebellum to

A

medulla

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

what type of projections does the inferior peduncle have

A

both afferent and efferent (input and output)

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

name the four cerebellar nuclei

A
  • dentate
  • globose
  • emboliform
  • fastigial
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

where is the dentate nucleus found

A

cerbellar hemisphere

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

where is the globose nucleus found

A

paramedian zone

17
Q

where is the emboliform nucleus found

A

paramedian zone

18
Q

where is the fastigial nucleus found

A

vermis

19
Q

two projections to the cerebellum

A
  • cerebral cortex → pons (pontocerebellar tract) → middle cerebellar peduncle → cerebellar cortex
  • vestibular nuclei/inferior olives/dorsal nuclei of Clark → inferior cerebellar peduncles → cerebellar cortex
20
Q

two projections from the cerebellum

A
  • cerebellar cortex → fastigial nuclei → inferior cerebellar peduncle → vestibular nuclei
  • globose nuclei/emboliform nuclei/dentate nuclei → superior cerebellar peduncle → thalamus → primary motor and premotor cortex
21
Q

three functional divisions of cerebellum

A
  • vestibulocerebellum
  • spinocerebellum
  • cerebrocerebellum
22
Q

what is the vestibulocerebellum also known as

A

archicerebellum

23
Q

afferent projections of vestibulocerebellum

A
  • via inferior peduncle from vestibular apparatus and vestibular nuclei
  • via middle peduncle from primary visual cortex and superior colliculus
24
Q

efferent projection of vestibulocerebellum

A

via inferior peduncle to vestibular nuclei

25
Q

functions of vestibulocerebellum

A
  • influences vestibulospinal tracts that control postural muscles
  • influences the vestibulo-occular reflex
  • maintains equilibrium
26
Q

what is the spinocerebellum also known as

A

paleocerebellum

27
Q

afferent projection of spinocerebellum

A

via inferior peduncle from spinal cord (somatotopic organization)

28
Q

efferent projections of spinocerebellum

A
  • paramedian zone: interposed nuclei → inferior peduncle → red nucleus → thalamus → motor cortex
  • vermis: fastigial nucleus → superior peduncle → vestibular nuclei/reticular formation/motor cortex
29
Q

functions of spinocerebellum

A
  • paramedian zone: influences lateral muscles (limbs)
  • vermis: influences axial muscles and facial/tongue muscles
  • tells CNS about the state of your muscles (proprioception)
30
Q

what is the cerebrocerebellum also known as

A

neocerebellum

31
Q

afferent projection of cerebrocerebellum

A

via middle peduncle from cortex and pontine nuclei (ie the corticospinal tract)

32
Q

efferent projections of cerebrocerebellum

A

Dentate nucleus → superior peduncle → red nucleus → thalamus → motor cortex

33
Q

functions of cerebrocerebellum

A
  • influences corticospinal and corticobulbar tracts to regulate complex movements
  • influences cerebellum for motor learning
  • tells cerebellum what cortex is doing or planning to do
34
Q

four causes of cerebellar dysfunction

A
  • physical trauma
  • interruption of blood supply/stroke
  • alcoholism (affects Purkinje cells in anterior lobe)
  • tumours/cancer (degeneration of Purkinje cells)
35
Q

clinical presentation of cerebellar dysfunction

A
  • Dysdiadochokinesia (difficulty carring out rapid, alternating movements)
  • ataxia
  • nystamgmus
  • intention tremour
  • scanning speech
  • hypotonia

Neuroanatomy (23 decks)

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