cerebrovascular system- chapter 31

common carotid arteries supply

right CCA branches off

left CCA branches off

brachiocephalic artery also known as

CCA bifurcates into

ICA supplies blood to

ECA supplies blood to

vertebral arteries arise off

vertebral arteries join to form the basilar artery is called

verts are often asymmetrical where ___ vert is larger

subclavian arteries enter the skull through

ICA and ECA bifurcate

T/F verts are largest in 1st branches of subclavian artery

right CCA is lateral to

CCA should have ___ waveform with __

ECA is more medial to __ and more __

ECA originates in

ECA supplies blood to

ECA has no significance to cerebral circulation except

blockages to cerebral/vertebral circulation → __ becomes source of collateral flow

branch that can be seen off of ECA to know you’re in the right spot

ICA originates at

ICA supplies blood to the

ICA has a

ICA enters skull via

the cavernous segment is also known as the

first major branch of ICA

most distal segment of ICA

another name for cerebral segment

vertebral artery arise from __ and enter skull from __

vertebral arteries supply blood to

verts run __ through transverse processes of

verts have what kind of flow?

circle of vessels that lie at the base of the brain connecting the anterior/posterior circulations

circle of willis acts as what when disease is present?

if disease is present anteriorly in the brain then which portion will provide blood to the area?

connected by anterior communicating arteries

originate at terminal ICA on both sides

terminal branches of basilar artery

connect posterior cerebral artery to middle cerebral artery

provides visualization of the middle, anterior, and posterior cerebral arteries

transtemporal window is in the

what kind of flow does the transtemporal window have?

direction of flow in transtemporal window depends on

flow of M1 goes

flow of ACA goes

flow of M2

PCA (top) flow

PCA (bottom) flow

provides visualization of vertebral and basilar arteries

transoccipital window is found

transoccipital window flow is

flow of transoccipital provides flow to

provides visualization of the ophthalmic artery

to prevent damage to the eye, output power must be

transorbital flow is

ophthalmic artery branches off

provides visualization of the ICA coursing toward the carotid canal

submandibular window flow is

applications for carotid scans

application for transcranial ultrasound

carotid symptoms that are one sided occur on the (same/opposite) side of lesion

vertebral symptoms that are one sided occur on the (same/opposite) side of lesion

physician hears a disturbance in the neck

TIA of eye that produces transient monocular blindness on the same side of the carotid artery w/ the problem

impaired coordination

thickening of intermedial wall or PLAQUE

atherosclerosis is commonly seen at

aliasing on the vessel indicates

hemodynamics of the vessel has changed

for hss, the blood flow of the color on the screen is __ than what the scale is set at

normal antegrade vertebral artery flow direction is

abnormal retrograde vertebral artery flow direction is