URR Cerebrovascular

Question 1

-first major branch of the aortic arch
-right CCA and right subclavian A are the only branches

Answer 1

Innominate A or brachiocephalic

Question 2

the right CCA originates from where?

Answer 2

innominate A

Question 3

left CCA originates from where?

Answer 3

aortic arch

Question 4

most common location of atherosclerosis?

Answer 4

CCA bif

Question 5

anterior/medial branch of CCA?

Answer 5

ECA

Question 6

ECA how in diameter compared to ICA?

Answer 6

smaller

Question 7

branches of ECA?

Answer 7

-sup thyroid (FIRST)
-lingual
-ascending pharyngeal
-facial a
-occipital a
-posterior curical
superficial temporals

Question 8

anterior branch of CCA that supplies mouth and tounge?

Answer 8

lingual A

Question 9

posterior branch of ECA that supplies pharynx?

Answer 9

ascending pharyngeal

Question 10

supplies scalp?

Answer 10

occipital a

Question 11

artery used to perform temporal tap?

Answer 11

superficial temporal artery

Question 12

resistance of ECA?

Answer 12

high

Question 13

normal PSV of ECA?

Answer 13

<150 cm/sec

Question 14

posterior/lateral branch of CCA?

Answer 14

ICA

Question 15

distal ICA courses anterior then medial coursing in an “S” shape. What is this called?

Answer 15

siphon area

Question 16

does the ICA have any visible branches?

Answer 16

NO

Question 17

does the ICA respond to temporal taps?

Answer 17

NO

Question 18

the ICA supplies what percentage to blood to the brain?

Answer 18

75%

Question 19

first branch of ICA?

Answer 19

ophthalmic artery
-supplies eyes, nose, forehead, and brain

Question 20

the vertebral artery supplies how much blood to the cerebrum?

Answer 20

10-25%

Question 21

which vertebral artery is usually longer?

Answer 21

left

Question 22

normal PSV for vertebral artery?

Answer 22

<50cm/sec

Question 23

the subclavian supplies blood to what?

Answer 23

vertebral artery and arm

Question 24

variant where subclavian artery is direct branch of Ao?

Answer 24

abberant artery

Question 25

resistance of subcalvian?

Answer 25

high

Question 26

waveform of subclavian?

Answer 26

triphasic

Question 27

branch of subclavian artery?

Answer 27

vertebral -internal mammary artery -thyrocervical and costocervical

Question 28

left and right vertebral artery merge to form a single what?

Answer 28

basilar artery

Question 29

branches of the vertebral artery supply blood to what?

Answer 29

superior cerebellum and portions of brain stem

Question 30

bifurcation of teh vertebral arteries at the circle of willis to form what artery?

Answer 30

cerebral

Question 31

the circle of willis supplies blood to what?

Answer 31

all lobes of the cerebrum

Question 32

the circle of willis is usually complete in about what percentage of patients?

Answer 32

50%

Question 33

anterior cerebral A supplies what?

Answer 33

frontal and parietal brain

Question 34

mid cerebral artery supplies what?

Answer 34

frontal, parietal, and temporal

Question 35

posterior cerebral artery supplies what?

Answer 35

temporal and occipital brain