Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

DPT 503 > Cerebellum > Flashcards

Cerebellum Flashcards

(42 cards)

Start Studying
1
Q

what are the roles of the cerebellum?

A

comparator and coordinator

motor sequencing

postural control

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

the cerebellum as comparator and coordinator

A

compares desired outcome of movement to what’s actually happening

makes adjustments on the fly

can coordinate muscle activities (ie. head movement w/eye movement)

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

what does the motor sequencing role of the cerebellum involve?

A

can link outputs together

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

what does the postural control role of the cerebellum involve?

A

anticipatory movements

stabilize the proximal to move the distal

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

what are the cerebellar tracts?

A

rubrospinal and reticulospinal-BS

vestibulospinal-vestibular system

spinocerebellar-SC

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

does the cerebellum have any direct connections to the lower motor neuron pool?

A

no, the cerebellum has no direct connections to LMNs, so damage to the cerebellum wouldn’t result in deficits to muscle strength

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

what is feedforward control?

A

get information from previous experiences

no way to correct errors in output

quick

no true feedforward systems in the body

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

what is feedback control?

A

sampling the environment causes change

info fed into comparator to see differences b/w desired and output info

error signal will change the output

accurate

not as quick bc it requires constant adjustments

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

where is the vermis in the cerebellum?

A

in the midline

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

what does the primary fissure separate?

A

the anterior and posterior lobes

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

where is the paravermis?

A

lateral to the vermis

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

where are the lateral hemispheres?

A

lateral to the paravermis

most lateral aspect

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

what is the floculonodular lobe?

A

the combination of the flocculus and nodule

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

what structures does the vermis contribute to?

A

head neck and trunk

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

what structures does the paravermis contribute to?

A

limbs

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

what structures do the lateral hemispheres contribute to?

A

digits (fine motor control)

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

what are the 3 nuclei in the cerebellum?

Study These Flashcards
A

fastigial nucleus

intermediate/interposed nucleus

dentate nucleus

18
Q

what is the fastigial nucleus?

Study These Flashcards
A

the most medial cerebellar nucleus

receives input from vermis and cerebellar afferents that carry info from vestibular structures

19
Q

what is the intermediate/interposed nucleus?

Study These Flashcards
A

lateral to the fastigial nucleus

input from paravermis and cerebellar afferents that carry spinal and visual info and somatosensory info

20
Q

what is the dentate nucleus?

Study These Flashcards
A

the most lateral cerebellar nucleus

receives info from lateral hemispheres and cerebrum

21
Q

what are the inputs of the cerebellum?

Study These Flashcards
A

mossy and climbing fibers

22
Q

are the inputs of the cerebellum (mossy and climbing fibers) excitatory or inhibitory?

23
Q

what are the outputs of the cerebellum?

Study These Flashcards
A

Purkinjie cells
- project to cerebellar and vestibular nuclei

24
Q

are the cerebellar outputs (Purkinjie cells) excitatory or inhibitory?

Study These Flashcards
A

inhibitory (GABAergic)

25
what are the only efferents going out of the cerebellum?
the 3 cerebellar nuclei (dentate, interposed, and fastigial)
26
what fibers provide the error signal?
climbing fibers
27
superior peduncle
major efferent pathway connects to the midbrain - does have one afferent tract from deep nuclei of cerebellum to thalamic nuclei (and to cerebral cortex) and red nuclei
28
middle peduncle
major afferent pathway connects to the pons from cerebral cortex via pontine nuclei largest peduncle
29
inferior peduncle
afferent and efferent pathways connects to medulla afferents coming from from SC (proprioceptive info) vestibular apparatus and nuclei ipsilaterally efferents go back to vestibular nuclei and reticular formation vestibulospinal and reticulospinal
30
what are the functional divisions of the cerebellum?
vestibulocerebellum spincerebellum cerebrocerebellum
31
what is the vestibulocerebellum division?
input: vestibular apparatus output: vestibular nuclei - eye movements and balance/equilibrium folculonodular lobe efferents from fastigial nucleus vestibulocerebellar tract projects vestibular info to vermis (adjustments to posture) and floculonodular lobe out of inferior peduncle vermis to contralateral fastigial nucleus to ipsilateral vestibular nuclei (double decussation) mostly ipsilateral bc of double decussation
32
what is the spinocerebellum division?
input: somatosensory, visual, auditory, vestibular output: lateral corticospinal and corticobrainstem tracts and medial motor tracts anticipatory, corrective, and responsive adjustments to movement vermis and paravermis-efferents out of vestigial and interposed nuclei high fidelity pathways and internal feedback pathways ipsilateral projections info from superior peduncle vermis projects to medial motor tracts paravermis projects to reticulospinal tracts interposed nucleus to red nucleus
33
what are the high fidelity pathways?
posterior spinocerebellar and cuneocerebellar high accuracy of how things are moving in the body
34
what are the internal feedback pathways?
anterior spinocerebellar and rostrospinocerebellar tracts not conscious level info
35
rubrospinal
controls flexors
36
what is the cerebrocerebellum division?
input: somatosensory, visual, auditory, vestibular output: cerebral cortex, lateral corticospinal and corticobrainstem tracts fine, distal voluntary movements and no motor emotional controls movement planning-timing afferents: cerebral cortex via pontine nucleus vermis, paravermis, and lateral hemispheres closed loop double decussation-ipsilateral cognitive functions: goal-directed behavior, language optimization, visuospatial function emotional and social functions: emotional memories and social behavior cerebellum-->cortex-->cerebellum dentate-->red-->motor areas
37
what 3 arteries make up the vascular supply of the cerebellum?
superior cerebellar artery (SCA) anterior inferior cerebellar artery (AICA) posterior inferior cerebellar artery (PICA)
38
what is the superior cerebellar artery a branch of?
the basilar artery
39
what is the anterior inferior cerebellar artery a branch of?
it is a lower branch of the basilar artery
40
what does the anterior inferior cerebellar artery supply?
flocculus and middle cerebellar peduncle
41
what is the posterior inferior cerebellar artery a branch of?
the vertebral artery
42
what occurs in cerebellar dysfunction?
it effects postural control, automatic movement, eye movement, and voluntary movement has cognitive and emotional effects unilateral lesions affect the ipsilateral side of the body (w/one exception)

DPT 503 (22 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions