brain - blood supply Flashcards

1
Q

CNS neurons are very dependent on ___ metabolism

A

aerobic

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2
Q

brain weighs __% of body weight but uses __% of the total cardiac output and consumes ___% of total available oxygen

A

2
15
20

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3
Q

blood supply to the brain is supplies by the ___ and ___ arteries

A

ICA

vertebral

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4
Q

ICA is one of the two terminal branches of the ___ ____ artery

A

common carotid

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5
Q

ICA has 4 pars

A

cervical
petrous
cavernous
cerebral

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6
Q

the cerebral part of the ICA gives off the ___ a which supplies the eye

A

opthalmic

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7
Q

ICA terminates by dividing into ___ and ___ cerebral arteries

A

anterior

middle

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8
Q

ICA anastomoses with the vertebral artery through the ___ ___ ___

A

circle of willis

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9
Q

anterior cerebral artery is one of the two terminal branches of the ____

A

ICA

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10
Q

anterior cerebral a supplies the medial surface of the ___ and ___ lobes as well as the adjoining strip of cortex along the medial edge of the ___ surface of these lobes

A

frontal
parietal
lateral

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11
Q

anterior cerebral a supplies portions of the ___ capsul and ___ ganglia

A

internal

basal

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12
Q

anterior cerebral a supplies the anterior / of the corpus collosum

A

4/5

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13
Q

middle cerebral a supplies the ___ and the lateral surface of the ___, ___, and ___ lones as well as the posterior portion of the ___ capsule and ____ ganglia

A
insula
frontal
partietal
temporal
internal
basal
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14
Q

2 vertebral arteries enter the ___ ___ and unite at the caudal end of the ___ to form the ___ artery

A

foramen magnum
pons
basilar

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15
Q

basilar artery ends by dividing into the ___ ___ arteries at the superior end of the pons

A

posterior cerebral

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16
Q

basilar gives off 4 branches

A

superior cerebellar
pontine
labyrinthine
ant inf cerebrellar

17
Q

post cerebral aa are the 2 terminal branches of the ___ a

A

basilar

18
Q

post cerebral gives rise to 2 branches

A

brainstem

cortical

19
Q

brainstem branch of the post cerebral a are named according to ___ __ ___

A

where they are

20
Q

cortical branches of the post cerebral a arise as the PCA courses along he inferiomedial surface of the ___ lobe to reach the ___ lobe. supplies the ____

A

temporal
occipital
hippocampus

21
Q

circle of willis is formed by the anastomosis of 5 aa

A
PCA
post communicating
ICA
ant cerebral
ant communicating
22
Q

circle of willis is located at the base of the ___, encircling the ___ ___, infundibulum of the ____ gland, and the ___ bodies

A

brain
optic chiasma
pituitary gland
mamillary bodies

23
Q

veins of the brain lie in the ___ space and pierce the ___ mater and memingeal layer of the ___ mater to drain into the ___ ___ ___

A

subarachnoid
arachnoid
dura
dural venous sinuses

24
Q

epidural hematoma

A

build up of blood between the dura and the skull

25
Q

subdural hematoma

A

blood accumulates between the dura and the arachnoid

26
Q

subarachnoid hemorrahage

A

bleeding in the subarachnoid space (between the arachnoid and pia mater)