brain stem Flashcards

1
Q

parts of the brain stem

A

mid brain, PONS, medulla oblongata

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1
Q

functions of brain stem

A

channel for ascending/ descending pathways
house cranial nerve nuclei
integrates functions of vital systems

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2
Q

which part of the brain stem is the narrowest and most distal

A

medulla oblongata

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3
Q

function of medulla oblongata

A

involuntary - respiratory, cardiovascular, digestion

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4
Q

which tract can be seen in the cross section of the medulla oblongata

A

spinocerebellar

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5
Q

which cranial nerves emerge from the anterior surface of the medulla

A

lower 4 - glossopharyngeal, vagus, spinal accessory, hypoglossal

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6
Q

which part of the brain stem develops from the metencephalon

A

PONS

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7
Q

function of PONS

A

voluntary control movement
corticopontocerebellar communication
left and right communication of cerebellum

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8
Q

which tract can be seen in the cross section of the upper PONS

A

corticospinal

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9
Q

what is the function of the midbrain

A

eye movements

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10
Q

what is the shortest segment of the brainstem

A

midbrain

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11
Q

where does the midbrain extend from and to

A

from base of thalamus to the superior roof of fourth ventricle

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12
Q

which part of the developing brain does the midbrain arise from

A

mesencephalon

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13
Q

which part of the brain stem can you find the pyramids

A

medulla oblongata

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14
Q

what is the posterior surface of the PONS formed from

A

upper part of rhomboid fossa

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15
Q

what is the function of reticular formation

A

neuronal core of brain stem

16
Q

what is ARAS

A

ascending reticular activation system