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Flashcards in Cerebellum Deck (24)
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1
Q

Cerebellum

A
3 layers
Purkinje cells
"Little cerebrum"
Makes up about 50% of the neurons
Volume is 10% of the brain
NOT for sensation!!!
2
Q

Tandem test

A

Test: walking in a straight line
For alcoholics
The patient has to be awake to test cerebellar function!

3
Q

If you see the substantia nigra..what part of the brain?

A

Midbrain

4
Q

If you see the third ventricle…

A

Thalamus!

5
Q

If I see the 4th ventricle…

A

Pons, medulla

6
Q

Roof of the cerebellum

A

Tentorium cerebelli

7
Q

Uncal herniation

A

When uncus is going down where it should not be

Most medial portion of the temporal lobe

8
Q

Structures above the dura: supratentorial

A

Structures below the dura: infratentorial

9
Q

Origin of the cerebellum

A

Metencephalon

10
Q

If there are lesions in the right cerebellum…

A

Problems in the right side
SAME SIDE!!!
Compared to cerebral cortex (contralateral)

11
Q

2 deep fissures

A

Primary fissure

Posterolateral fissure

12
Q

3 lobes

A

Flocculonodular
Anterior
Posterior

13
Q

Most medial in the temporal lobe

A

Uncus

14
Q

Structure pushed down when there is swelling in the cerebellum
Found near the foramen magnum
Patient could die because medulla is compromised (breathing)

A

Tonsil of cerebellum

15
Q

Biggest one connected with cerebellum and pons
There are many fiber connections
Thick
Contains AFFERENT fibers!!!
Largest Lateralest Latest phylogenetically

A

Middle cerebellar peduncle

Higher cortical info

16
Q

Connect cerbellum with midbrain

Contain mostly EFFERENT fibers

A

Superior cerebellar peduncle

Processed output travels

17
Q

Connects cerebellum with the medulla and spinal cord

Contain BOTH afferent and efferent fibers

A

Inferior cerebellar peduncle

Peripheral information about the body enters the cerebellum through here

18
Q

Exception!

Know about:

A

Vestibular system

19
Q

Are there nuclear structures inside the brain?

A

Yes!

Subcortical neurons: basal ganglia, thalamus, caudate

20
Q

Most impt letter in neuroanatomy?

A

C (Dentate nuclei)

21
Q

Are there neuronal cells in the cerebellum?

A
White matter (medullary center)!
Called cerebellar nuclei
22
Q

All fibers going out in the cerebellum pass through the superior cerebellar peduncle but not all come in…

A

They pass through the ventral spinocerebellar tract

23
Q

Tract

A

Fiber, white matter

24
Q

Why ipsilateral?

A

Cerebro Cerebello Cerebral Circuit

Corticospinal tract