lecture 4 Flashcards

1
Q

is irregularly convex and has a deep hollow called Vallecula that separated the cerebellar hemispheres

A

Inferior surface:

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2
Q

originate exclusively in theinferioroliveand make excitatory projections onto the cerebellar nuclei and onto thePurkinjecellsof the cerebellar cortex

A

Climbing fibers

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3
Q

cortex of the cerebellum is folded by many parallel transverse fissures in to the

A

cerebellar Folia

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4
Q

is formed by the cerebellum, the superior part is formed by the

A

Superior Medullary Velum

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5
Q

superior surface of the cerebellum and separated by the V- shaped

A

primary fissure

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6
Q

superior cerebellar peduncle, primarily contains efferent fibers from the cerebellar nuclei

A

interposed and dentate

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7
Q

which is found only in mammals and is largest in humans

A

Neocerebellum

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8
Q

which is the only component of the cerebellum in fishes and in lower amphibians.

A

Archicerebellum

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9
Q

are four masses of gray matter embedded in the white matter of the cerebellum on each side of the midline, from lateral to medial these nuclei are

A

intracerebellar nuclei

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10
Q

comprises theflocculonodular lobeand receives input from the vestibular nerve and nuclei.

A

Vestibulocerebellum

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11
Q

are very small, densely packed neurons that account for the huge majority of neurons in the cerebellum.

A

Granule cells:

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12
Q

It is associated with fine voluntary movements.

A

posterior lobe (neocerebellum

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13
Q

The cerebellar cortex has a relatively simple, stereotyped connectivity pattern that is identical throughout the whole structure.

A

Connectivity

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14
Q

The cerebellum plays a major role in ___to make accurate movements through a trial-and-error process

A

adapting and fine-tuning motor programs

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15
Q

is the outer one layer, molecular layer is form by

A

stellate cell , basket cells, golgi cells.

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16
Q

covered superiorly by the __ that separate from the occipital lobe of the cerebrum.

A

Tentorium Cerebelli

one of the expansion of the dura mater

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17
Q

They are called mossy fibers because of the tufted appearance of their synaptic contacts with granule cells, known as ____

A

glomerulus

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18
Q

associated with the vestibular system, playing key role in maintaining balance and controlling eye movement.

A

flocculonodular lobe (archicerebellum)

19
Q

it modulates commands to motor neurons to compensate for shifts in body position or changes in load upon muscles

A

vestibular receptors and proprioceptors

20
Q

cerebellum consists of two Cerebellar Hemispheres joined by a narrow median

21
Q

run parallel to the folds of the cerebellar cortex, where they make excitatory synapses withPurkinjecellsalong the way.

A

parallelfibers

22
Q

inferior cerebellar peduncle, Primarily contains afferent fibers from the contralateral

A

inferior olivary nuclei, dorsal spinocerebellar tract and from the vestibular nerve and nuclei.

23
Q

is the internal layer, is formed by the ____ and _____

A

granule cells, Golgi cells.(Granule cell layer)

24
Q

is the largest of the cerebellar nuclei, located lateral to the interposed nuclei

A

dentate nucleus

25
originate in the pontine nuclei, the spinal cord, the brainstem reticular formation, and the vestibular nuclei
Mossy fibers
26
is a double layer of pia matter that lies in the inferior medullary velum of the fourth ventricle
Tela Choroidea
27
The inferior part of the roof is formed by the
Inferior Medullary Velum and its Tela Choroidea.
28
which is present in higher amphibians and is large in reptiles and birds.
Paleocerebellum
29
comprise the emboliform nucleus and the globose nucleus
interposed nuclei 
30
middle cerebellar peduncle, contains afferent fibers from the
contralateral pontine nuclei, the pontocerebellar fibers
31
excitatory transmitter is
Glutamate
32
is formed by the flocculus, peduncles, and nodule,
flocculonodular lobe
33
the blood vessels of the tela choroidea form a rich vascular fringe that projects in the cavity of the fourth ventricle to form the
choroid plexus. 
34
has the tent-shape, with the center in upward position and the lateral sides in downward position (slopes downward).
Superior surface
35
It receives input from the vermis and from cerebellar afferents that carry vestibular, proximal somatosensory, auditory, and visual information.
fastigial nucleus
36
One major function of the cerebellum is to _______ of these different muscle groups to produce fluid limb or body movements.
coordinate the timing and force
37
gross movements of the head and body.
anterior lobe Functionally related to the
38
is the largest functional division of the human cerebellum, comprising the lateral hemispheres and the dentate nuclei.
Cerebrocerebellum
39
inhibitory transmitter is the
gamma-aminobutyric acid
40
is the middle layer, contains a single row of bodies of purkinje cells.
Purkinje cell layer
41
has the anterior cerebellar notch
Anterolateral or anterior border
42
comprises the vermis and the intermediate zones of the cerebellar cortex, as well as the fastigial and interposed nuclei
Spinocerebellum (cuneocerebellar)
43
has the posterior cerebellar notch.
Posterolateral or posterior border
44
cerebellar cortex layer
molecular layer purkinje cell layer granular layer: inner layer