Cerebellum & 4th ventricle Flashcards

1
Q

What is the cerebellum involved in?

A

Coordination of movement

balance

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2
Q

What is the name of the midline of the cerebellum that joints the ovoid hemispheres together?

A

Vermis

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3
Q

What does the over layer of the vermis consist of?

A

Grey matter

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4
Q

What does the inner core of the vermis consist of?

A

White matter with deep nuclei

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5
Q

What is the name of the transverse curving fissure which give the cerebellum their individual ridges?

A

Folia

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6
Q

What are folia on the cerebellum?

A

Transverse curving fissures which give the cerebellum their individual ridges

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7
Q

Where does the cerebral aqueduct run?

A

Through the midbrain

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8
Q

What does the cerebral aqueduct connect?

A

The 3rd and 4th ventricle

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9
Q

Where are the substantia nigra located?

A

on each of the cerebral peduncles

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10
Q

loss of substantial nigra = in what disease?

A

Parkinson

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11
Q

What is the substantia nigra?

A

black band of nerve cells in the tegmentual area

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12
Q

What is the red nucleus?

A

circular mass of grey area located in the tegmentum next to the substantia nigra

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13
Q

What are the tonsil in the brain?

A

prominent red swelling of the cerbellar cortex located on either side of the vermis

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14
Q

What is the flocculus?

A

ovoid in shape with crinkled edge

lie posterior to the lateral foramen of 4th ventricle

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15
Q

What is the nodule located in the cerebellum?

A

continuation of the flocculus

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16
Q

What is the flocculo-nodular lobe concerned with

A

vestibular information from the ear

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17
Q

What is the name of the largest deep cerebellar nuclei?

A

Dentate nucleus

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18
Q

What is the dentate nucleus important in?

A

Planning, initiating and control of movement

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19
Q

What is the rhomboid fossa?

A

diamond shaped floor of the 4th ventricle

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20
Q

What are the names of the 2 tubercles located on the dorsal column nuceli?

A

Gracile and cuneate

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21
Q

What does the median sulcus divide?

A

The rhomboid fossa into left and right halves

22
Q

What lie in the floor of the 4th ventricle?

A

Nuclei of the lower cranial nerves

23
Q

What is the obex?

A

Inferior apex of the rhomboid fossa

24
Q

What is the area postrema associated with?

A

Nausea control

25
What does the area postrema lack?
a blood brain barrier
26
What will injury to the cerebellum cause?
Loss of coordination (NOT MOVEMENT)
27
What does the outer grey matter contain?
nuclei and ganglia (cell bodies)
28
What does the inner white matter contain?
axons
29
What does the superior cerebellar peduncle do?
Rely information back to the midbrain
30
What does the middle cerebellar peduncle do?
information from the cerebellar to the pon
31
What does the inferior cerebellar peduncles do?
Connects the cerebellum to the medulla
32
what is the job of the corpus callosum?
communicating between the 2 hemispheres
33
What is the posterior end of the corpus callosum called?
splenium
34
What is the job of the splenium?
Part of the visual pathway
35
What does the diancepalon contain?
The thalamus and hypothalamus
36
What is located between the 2 halves of the diancephalon?
the 3rd ventricle
37
What is the job of the intraventricular foramen?
permits CSF flow from the lateral ventricles to the 3rd ventricle
38
What does the 4th ventricle continue with?
the spinal cord
39
Which parimary cortex and a 2x thicker grey matter?
The priamry motor cortex
40
What are the names of the 2 primary cortexes in the brain?
The primary visual cortex | the primary somatosensory cortex
41
Where does the central sulcus run?
The midpoint of the hemispheres to the medial surface
42
What shape does the paracentral cortex form?
U shape
43
What sulcus runs above the corpus callosum?
The cingulate sulcus
44
What does the cingulate sulcus seperate?
the cingulate gyrus
45
Whta cortex lies in the wall of the calcarine sulcus
the primary visual cortex
46
What is the fornix?
bundle of white matter beneath the corpus callosum
47
What does the fornix connect?
the hippocampus to the opposite hemispheres
48
What forms the dorsal part of the diencephalon
the thalamus
49
What forms the ventral part of the diencephalon
the hypothalamus
50
What info does the medial geniculate body relay?
Auditory information
51
What info does the lateral geniculate body relay?
visual information