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Neuro - Physiology > Topography of the Brain > Flashcards

Topography of the Brain Flashcards

1
Q

what is a tract

A

a pathway of neurons that passes through the CNS with a specific function

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2
Q

what neck artery supplies the brain

A

ICA

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3
Q

arteries that supply the brain

A

internal carotid and vertebral arteries

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4
Q

where do vertebral arteries enter the skull

A

foramen magnum

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5
Q

branching from aorta to vertebral arteries

A

aorta –> subclavian –> vertebral

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6
Q

entry of ICA into skull

A

through foramen lacerum

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7
Q

main blood supply of posterior of brain

A

vertebral arteries

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8
Q

main blood supply of anterior of brain

A

internal carotids

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9
Q

purpose of circle of willis

A

protective featuure against occlusion of large arteries

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10
Q

the two vertebral arteries unite to form the ________ artery

A

basilar artery

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11
Q

cerebral artery of medial aspect of brain/cortex

A

anterior cerebral artery

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12
Q

cerebral artery of lateral aspect of brain/cortex

A

middle cerebral artery

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13
Q

landmark of basilar artery diving into posterior cerebral arteries

A

level of the midbrain

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14
Q

blood supply of brainstem and cerebellum

A

vertebral and basilar artery

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15
Q

blood supply of ACA

A

a slice down the middle of brain

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16
Q

blood supply of occipital lobe

A

posterior cerebral artery

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17
Q

blood supply of temporal lobe

A

MCA and PCA

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18
Q

where are the venous sinuses in relation to the meninges

A

between two layers of dura mater

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19
Q

drainage of brain into neck veins

A

into IJV

20
Q

3 primary vesicles of neural tube

A

forebrain (prosencephalon), midbrain (mesencephalon) and hindbrain (rhombencephalon)

21
Q

what week does the neural tube divide into the 3 primary vesicles

A

week 4

22
Q

which crainial nerves emerge from the brainstem

A

III - XII

23
Q

which 2 cranial nerves emerge from the cerebrum

A

I and II, olfactory and optic

24
Q

what ventricle is in the brainstem

A

4th ventricle

25
Q

which part of the brainstem has pyramids

A

medulla

26
Q

medulla cranial nerves

A

IX - XII

27
Q

exit of medulla from skull

A

foramen magnum

28
Q

what connects the medulla to the cerebellum

A

the inferior cerebellar peduncles

29
Q

pons cranial nerves

A

V - VIII

30
Q

what connects the pons to the cerebellum

A

the middle cerebellar peduncle

31
Q

midbrain cranial nerves

A

III and IV

32
Q

what connects the midbrain to the cerebellum

A

superior cerebellar peduncle

33
Q

what connect the midbrain to the cerebrum

A

cerebral peduncle

34
Q

what is the only nerve to originate posteriorly

A

IV

35
Q

little pumps on posterior of midbrain

A

colliculi

36
Q

ventricle structure that runs through the midbrain

A

cerebral aqueduct

37
Q

what separates the hemispheres of the cerebellum

A

vermis

38
Q

3 lobes of cerebellar hemispheres

A

anterior, posterior and flocculonodular

39
Q

what stroke/neurological sign is caused by the cerebellum

A

ataxia

40
Q

signs of ataxia

A

co-ordination –> finger-nose test, knee-heel test, walking in a straight line

41
Q

which part of the brain maintains posture

A

cerebellum

42
Q

3 routes of info into cerebellum

A
  1. pyramidal tracts
  2. ipisilateral proprioception
  3. vestibular nucelii (balance and posture)
43
Q

what is the diencephalon

A

deep part of cerebrum that lies around the 3rd ventricle.

It contains the thalamus, hypothalamus and epithalamus

44
Q

what group of structures is the thalamus part of

A

limbic system

45
Q

purpose of the thalamus

A

a sensory relay centre from periphery to cortex

46
Q

where is circadian rhythm regulated

A

hypothalamus

Neuro - Physiology (16 decks)

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