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Flashcards in dissection contents of the skull Deck (38)
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1
Q

what supplies blood to the meninges

A

anterior middle and posterior meningeal arteries

2
Q

where are the meningeal arteries found

A

in the outer end-steal dura mater

3
Q

what are the real and potential spaces

A

real - subarachnoid

potentail - extradural

4
Q

how does blood drain from the head

A

most via sinuses and internal jugular veins

restore emissary veins that connect with superficial venous drainage

5
Q

what do the vertebral arteries and their branches supply

A

medullar

6
Q

vertebral artery branches

A

posterior and anterior spinal

posterior inferior cerebellar arteries

7
Q

what does the bacillary artery supply

A

cortex medulla and pons

via anterior inferior cerebellar arteries

8
Q

branches off the bacillary artery

A

pontine artiers
labyrinthe (internal ear)
superior cereballer artery (cerebellum pons and midbrain)

9
Q

what does the posterior cerebral arteries supply

A

occipital and temporal lobe

10
Q

what do the anterior cerebral arteries supplu

A

medial inferior surface fronta love
medial surface of frontal and parietal lobes
lateral surface

11
Q

what does the middle cerebral arteries suppl

A

lateral surface of frontal, parietal and temporal lobes

12
Q

what are the connections between the pairs of cerebral arteries

A

anterior and posterior communicating arteries

13
Q

which cranial nerve has the longest intercrainial course in contact with bone

A

abducens

may be compressed if intracranial pressure is raised

14
Q

compression of abducens symton

A

double vision

15
Q

function of CSF

A

cushioning

supplies nutrients

16
Q

circulation of CSF through the ventricles

A

lateral ventricles to the third ventricle
down the cerebral aqueduct into the 4 th ventricle
enters subarachnoid space

17
Q

what if the CSF is blocked

A

hydrocephalus(local accumulation above blockage)

18
Q

where is CSF blockage most likely to occur

A

cebebral aqueduct

19
Q

what happens in the medulla

A

control of respiration and caridoasular system

20
Q

what happens in the pon

A

links cerebellum with brainstem and spinal cord

21
Q

what happens in midbrain

A

connects pons to forebrain

22
Q

cranial fossa

A

anterior middle and psoterior

23
Q

what is in each cranial fossa

A

frontal lobes - anterior
temporal lobes-middle
brainstem and cerebellum-posteriorcrainal fossa

24
Q

what is the corpus callosum

A

broad band of fibres that joins the two hemisphers

25
Q

sensory cortex

location,function, bloody supply

A

parietal lobe
sensation perception
middle cerebral artery

26
Q

motor cortex

location,function, bloody supply

A

frontal lobe
control of voluntary muscle
anterior and middle cerebral arteries

27
Q

visual cortex

A

occipital
visual stimuli
posterior cerebral artery

28
Q

auditory corex

A

temporal lobe
auditory stimuli
middle cerebral artery

29
Q

broca

A

left frontal lobe
motor coordination of speed
middle cerebral artery

30
Q

wwenickes are

A

left temporal and parietal lobe
interpretation of speech
middle cerebral artery

31
Q

damage to anterior cerebral artery

A

sensory and motor loss to contralateral leg

32
Q

damage to middle cerebral artery

A

loss of somatosensory/motor areas

speech probelsm

33
Q

damage to posterior middle artier

A

loss of vision on one side

34
Q

grey vs white matter

A

grey - cell bodies, dendrites and syanpses

white - axons

35
Q

what is the basal ganglia involvdin and if that is diseased..

A

motor system

dyskesia

36
Q

black area of the brain

A

substantia nigra

- has dopamine

37
Q

parkinsons disease

A

reduction in dopamine

38
Q

what does somatatopic mean

A

Point-for-point correspondence of an area of the body to a specific point on central nervous system

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