Brainscape's Knowledge GenomeTM

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


See full index

Cerebellum > General Cerebellum Knowledges > Flashcards

General Cerebellum Knowledges Flashcards

1
Q

What does “cerebellum” mean?

A

Little Brain

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

In a nutshell, what is its role ?

A

Plays a role in posture, balance, maintenance of muscle tone and coordinated skilled voluntary motor activities.

PROCESSES INFORMATION ABOUT CURRENT MOVEMENT AND POSITION

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

What is the tentorium cerebelli ?

A

The structure that separates cerebellum from occipital and temporal lobes.

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

Site three regions to which is linked the cerebellum

A

Medulla, pons and the fourth ventricle

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

In a nutshell, how is built the Cb ?

A

The Vermis and two hemispheres.

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

Site the three Cb lobes

A

Anterior, posterior and flocculonodular lobes.

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

What is the other name of the anterior lobe and what is its function ?

A

Spinocerebellum
Regulation of muscle tone and adjusting movements.

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

What separates the Anterior lobe from other structures ?

A

The primary fissure.

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

What is the other name of the posterior lobe and what is its function ?

A

Cerebocerebellum
Assisting in planning and programming of skilled or fine motor movements

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

What separates the Anterior lobe from other structures ?

A

Horizontal fissure

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

What is the other name of the flocculonodular lobe and what role it plays ?

A

Vestibulocerebellum
Maintenance of posture and balance.

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

What is the flocculonodular lobe made from (two structures) ?

A

One nodule (center part) and two floculli (on each sides).

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

What is the delimiration of the flocculonodular lobe ?

A

Posterolateral fissure

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

Site the three fissure of the Cb

A

Horizontal fissure
Posterolateral fissure
Primary fissure

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

What are the cebellar peduncles ?

A

Contains efferent and afferent axons between Cb and CNS.

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

Cite the three peduncles of the cerebellum

A

Superior
Middle
Inferior

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

What does the SUPERIORcerebellar peduncle connect ?

A

Connects cerebellum and MIDBRAIN

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

What does the MIDDLE cerebellar peduncle connect ?

A

Connects Cb with pons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What does the INFERIOR cerebellar peduncle connect ?

A

Connects Cb and Medulla

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What are the major fibre of the SUPERIOR cerebellar peduncle ? (afferent/efferent)

A

Majority of EFFERENT signals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What are the major fibre of the MIDDLEcerebellar peduncle ? (afferent/efferent)

A

Majority of AFFERENT signals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What are the major fibre of the INFERIOR cerebellar peduncle ? (afferent/efferent)

A

Majority of AFFERENT signals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What are called the folds of the cerebellar cortex ?

A

The folia

24
Q

Describes the folia of the Cbar cortex

A

Ridges thinner, smalled and they’re organized in parallel layers

25
Q

Describe how is organized the grey and the white matter in the Cbar cortex.

A

External grau matter layer, subcortical white matter.

26
Q

How is called the white matter in the Cb ?

A

The Arbor vitae

27
Q

SIte the four cerebellar nuclei from lateral to medial.

A

Dentate
Emboliform
Globose
Fastigial

28
Q

What is the Interposed nucleus ?

A

A merged version of the emboliform and of the fastigial nuclei.

29
Q

Where does the Lateral zone of the Cbar cortex project to ?

A

to the dentate nucleus

30
Q

What is the role of the lateral zone of the Cbar cortex ?

A

Planning and programming mvt

31
Q

Where does the INTERMEDIATE ZONE (paravermal) of the Cbar cortex project to ?

A

Globose and emboliform nucleus (interposed nuclei)

32
Q

What is the role of the INTERMEDIATE ZONE of the Cbar cortex ?

A

Modulating motor execution of lateral descending motor pathways

33
Q

Where does the MEDIAN VERMAL ZONE (paravermal) of the Cbar cortex project to ?

A

To fastigial nucleus

34
Q

What is the role of the MEDIAN VERMAL ZONE ?

A

Modulating motor execution of medial descending motor pathways

35
Q

Site three main sources of Cb afferences

A

Spinal cord and brainstem
Cerebral cortex
Vestibular sys

36
Q

Site three main pathways for Cb afference from the SC.

A

VENTRAL/ANTERIOR spinocerebellar pathway
DORSAL/POSTERIOR spinocerebellar pathway
Cuneocerebellar pathway

37
Q

What kind of signal carries the Ventral/anterior spinocerebellar pathways to the Cb ?

A

Proprioceptive information from muscle spindles, golgi tendon organs and joint receptor of LOWER extremities

38
Q

What kind of signal carries the Dorsal/posterior spinocerebellar pathways to the Cb ?

A

Proprioceptive information from muscle spindles, golgi tendon organs and joint receptor of TRUCK and LOWER extremities

39
Q

What kind of signal carries the cuneocerebellar pathways to the Cb ?

A

Proprioceptive information from muscle spindles, golgi tendon organs and joint receptor within UPPER LIMBS and THORAX

40
Q

Cite afferent pathways from the Cbar cortex

A

Cortico PONTO Cbar
Cerebro OLVIVO Cbar
cerebro RETICULO Cbar

41
Q

Cite main functions of pathways from the Cbar cortex

A

Further regulate and modify voluntary movement (initiation, planning, timing of motor activities)

42
Q

Where does the cortico PONTO Cbar pathway takes it source ?

A

Cortex of frontal, temporal, parietal, et occipital lobes

43
Q

Where does the cortico OLIVO Cbar pathway takes it source ?

A

Frontal, temporal, parietal and occiital lobes

44
Q

Where does the cortico RETICULO Cbar pathway takes it source ?

A

Sensorimotor cortical regions in parietal lobe

45
Q

What is the role of the vestibulocerebellar pathway ?

A

Maintenance of balance, posture, body position and coordination of eye mvt.

46
Q

Cite 6 main destinations of efferent fibers

A

Vestibular nuclei
thalamus
red nucleus
reticular formation
cerebral cortex
spinal cord

47
Q

Where does the efferent vestibular pathway takes its source ?

A

Fastigial N

48
Q

What is the function of the fastigial vestibular pathway ?

A

Regulating extensor muscle tone
vestibulospinal tract: signals to motor neurons of the SC and maintain posture

49
Q

Where does the thalamic pathway (efferent) takes it source in terms of Cb nuclei ?

A

Dentate nucleus

50
Q

what is the fct of the dentatothalamic pathway ?

A

modifies ipsilateral motor activity
information relayed to corticospinal tract (influences and modulates motor activity of descending motor pathways).

51
Q

Where does the rubral pathway (efferent) takes it source in terms of Cb nuclei ?

A

Globose and emboliform nuclei

52
Q

What is the fct of the rubral pathway?

A

Modifies ipsilateral motor activity
Influences RUBROSPINAL tract which acts of PROXIMAL FLEXOR MUSCULATURE of UPPER LIMB.

53
Q

Where does the reticular pathway (efferent) takes it source in terms of Cb nuclei ?

A

Fastigial nucleus

54
Q

What is the role of fastigial reticular pathway ?

A

Modulatory inf to medial and lateral reticulospinal tract.

55
Q
A

Cerebellum (1 decks)

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