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Neuroanatomy > Unit 2 Post Quiz- Cerebellum > Flashcards

Unit 2 Post Quiz- Cerebellum Flashcards

1
Q

Blood supply of the caudal medulla (closed medulla)

A

Dorsal- post spinal art (PSA)

Middle- Ant spinal art (ANA) and VA (vertebral art)

Ventral - ASA

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2
Q

What is the blood supply to the medial meniscus?

A

ASA

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3
Q

Blood supply to the cranial/rostral medulla (open medulla)

A

Dorsal- Post inf cerebellar art (PICA)

Middle- PICA and VA

Ventral- ASA and VA

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4
Q

Blood supply to the caudal pons

A

Dorsal- Basilar art (BA) , AICA

Ventral- BA

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5
Q

Blood supply to the tegmentum of the pons

A

BA

AICA

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6
Q

Blood supply to the basilar pons

A

BA

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7
Q

blood supply to the cranial/rostal pons

A

Dorsal- Sup cerebellar art (SCA)

Middle- BA, SCA

Ventral- BA (off of pontine branches)

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8
Q

Dividing line of the midbrain

A

colliculi

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9
Q

blood supply to caudal midbrain (inf colliculus)

A

Dorsal- SCA, post cerebral art (PCA)

ventral- BA, SCA

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10
Q

blood supply to cranial midbrain (sup colliculus)

A

dorsal- PCA

ventral- PCA, pCoA (post communicating artery)

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11
Q

Where does the cerebellum lie, and what is it covered by?

A

in the post cranial fossa, covered by tentorum cerebelli (which separates it from the occipital lobe)

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12
Q

The cerebellum receives receptors concerned with:

And has outputs from the:

Therefore it is concerned with:

A

voluntary movements and balancce

deep cerebellar nuclei to the descending motor tracts

muscle coordination

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13
Q

Two major indentations to the surface of the cerebellum

A

primary (anterior) fissure

posteriolateral (uvulonodular, prenodular) fissure

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14
Q

location of the primary fissure on the cerebellum

A

between ant and post lobes

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15
Q

location of posteriolateral fissure of the cerebellum

A

between post and flocconodular lobes

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16
Q

of the two fissures of the cerebellum, which has deepest indentation?

A

primary fissure

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17
Q

the posteriolateral fissure of the cerebellum comes from what?

A

the 4th ventricle

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18
Q

3 lobes of the cerebellum

A

anterior lobe

floccocodular lobe

posterior lobe

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19
Q

location of the flocconodular lobe of the cerebellum

A

ant/sup to the posteriolateral fissure

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20
Q

the flocconodular lobe, AKA

A

archicerebellum (phylogenic, oldest part)

vestibulocerebellum (functional name)

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21
Q

function of the flocconodular lobe of the cerebellum

A

regulates muscle tone associated with balance and eye movement.

allows actions to be nice and smooth

Unconscious control

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22
Q

location of the anterior lobe of the cerebellum

A

Rostral/anterior/superior to primary fissure

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23
Q

anterior lobe of the cerebellum, AKA:

A

Paleocerebellum (phytogenic)

Spinocerebellum (functional)

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24
Q

function of anterior lobe of the cerebellum

A

regulates muscle tone

motor system control of the limbs (innervated by spinal nerves)

unconscious control

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25
Q

location of post lobe of the cerebellum

A

between primary and posteriolateral fissures

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26
Q

Posterior lobe of the cerebellum, AKA

A

neocerebellum (newest)

Cerebrocerebellum

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27
Q

function of post lobe of the cerebellum

A

programmed movements (learned movements associated w/ cerebrum. When 1st learned, they are cerebral movements. Then eventually moves to the cerebellum to be unconscious… Muscle memory, like driving stick)

28
Q

on the longitudinal section, the cerebellum consists of what?

A

an outer layer of gray matter with an inner core of white matter

29
Q

3 zones of the cerebellum (longitudinal section)

A

vermis (median)

paravermal (paramedian)

lateral

30
Q

Medial area of the cerebellum (longitudinal) with fastigial nucleus.

What is the purpose?

A

Vermis

increases surface area

31
Q

Medial hemisphere of the longitudinal cerebellum

A

Paravermal – just outside the vermis

32
Q

nuclei of the paravermal are made up of:

A

globose and emboliform nuclei

33
Q

what makes of the hemisphere of the cerebellum

A

lateral and paravermal areas

34
Q

largest part of the of the cerebellum

what nuclei make this up?

A

lateral zone

dentate nucleus

35
Q

deep cerebellar nuclei (intracerebellar nuclei) from lateral to medial:

A

dentate

emboliform

globose

fastigal

36
Q

what makes of the interposed nuclei of the cerebellum

A

globose and emboliform

these work together and have the same function

37
Q

largest deep cerebellar nuclei, “U” shaped

A

dentate

38
Q

smallest deep cerebellar nuclei

A

emboliform

39
Q

3 histological layers of the cerebellummmmmmmm

from outer most to innermost

A

molecular

purkinje

granular

40
Q

what makes up the molecular layer of the cerebellum

A

stellate and basket cells (inhibitory)

41
Q

what cells make up the purkinje later of the cerebellum

A

purkinje… duh

inhibitory

42
Q

what cells make up the granular layer of the cerebellum

A

Granular cells (axons form parallel fibers in molecular layer) (excitatory)

and golgi cells (inhibitory)

43
Q

Inhibitory cells of the cerebellum

A

Basket cells

stellate cells

purkinje

golgi

44
Q

Excitatory cells of the cerebellum

A

Granular cells

Mossy Fiber

Climbing fiber

45
Q

what do granular cells excite?

A

golgi

purkinje

stellate

basket

46
Q

what do stellate cells inhibit

A

purkinje cells

47
Q

what do basket cells inhibit

A

purkinje cells

48
Q

what do purkinje cells inhibit

A

deep cerebellar nuclei

OR

Vestibular nuclei (in the pons)

49
Q

what do golgi cells inhibit

A

granular cells

50
Q

Is it possible to inhibit an inhibitor to activate a cell?

A

yessss

51
Q

Mossy fibers of the cerebellum originate from:

A

CN VIII

Vesticular nuclei (balance)

Trigeminal nuclei (proprioception of head)

pontine nuclei (current status of environment)

Reticular formation (motor system control)

52
Q

what do mossy fibers excite?

A

deep cerebellar nuclei

stellate

golgi

basket

purkinje

NOT GRANULAR CELLS!!!!!

53
Q

climbing fibers of the cerebellum come from what?

A

olivocerebellar tract

54
Q

what do the climbing fibers excite?

A

deep cerebellar nuclei

granular

golgi

55
Q

island of gray matter in white matter of the cerebellum

A

deep cerebellar nuclei

56
Q

all output of the cerebellum goes through whaaat?

A

deep cerebellar nuclei

57
Q

what inhibits the deep cerebellar nuclei

A

purkinje cells

58
Q

nuclei of the deep cerebellar nuclei

A

fastigial nucleus

Interposed nuclei

Dentate nucleus

59
Q

pathway of fastigial nucleus and function

A

fastigial n. (motor system control)

reticular formation (RF) and vestibular nuclei

muscles of erect posture

60
Q

pathway of interposed nuclei

A 
red nucleus (MS controller) 
Rubrospinal tract (MS controller) 
Spinal cord

OR

ventral ant, ventral lateral thalamus
motor cortex (Origin of voluntary motor activity)
Corticospinal tract
Spinal cord

61
Q

pathway of the dentate nucleus

A

VA/VL thalamus

Motor cortex

corticopinal tract

(similar to interposed)

62
Q

Cerebellar peduncles

A

inferior

middle

superior

63
Q

peduncle for input of medulla to the cerebellum

A

inf cerebellar peduncle

64
Q

cerebellar peduncle containing pontocerebellar tract .

Function?

A

Middle cerebellar peduncle

influences of the cerebrum on the cerebellum
aka cerebral override of the cerebellum

65
Q

cerebellar peduncle containing output channel for deep cerebellum to midbran

A

superior cerebellar peduncle

Neuroanatomy (6 decks)

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