ARDMS RVT ULTRASOUND VASCULAR CTL
EXAM PRACTICE Q&A TESTED AND
APPROVED NEWLY MODIFIED
How much blood is in each type of vessel in our vascular system? -- ANSWER-
-5% - Capillaries
65% - Veins
30% - Arteries
What is the purpose of Capillaries? -- ANSWER--They are single-walled,
hairsized vessels that connect the arterial and venous systems. Fluid pass
through these walls to provide nutrients to cells and tissues and carry away
waste products
What are the only two veins that don't carry blood back to the heart? --
ANSWER--Pulmonary Vein
Hepatic Portal Vein
What prevents blood flow into expanding capiillaries? -- ANSWER--Sphincters
(open)
pg. 1
,What are the three vessel wall layers? -- ANSWER--Tunica Intima
Tunica Media
Tunica Adventitia
What is the function of and where is the Tunica Intima? What are the layers of
it? -- ANSWER--Tunica intima is the inside layer of the vessel, which forms
valves. It is composed of a single layer of endothelial cells (lumen), connective
tissue layer, and an elastic layer made of elastic fibers
On which side is the Brachiocephalic trunk? What originates from it? --
ANSWER--It is on the right side, and the right subclavian and right CCA are
divided here - right vertebral artery can sometime originate on the trunk,
although it most often originates on the CCA
Where is the CCA in relation to the jugular vein? -- ANSWER--CCA is medial
to jugular
Which CCA is longer and why? -- ANSWER--Left CCA longer due to its
origination from the arch
pg. 2
,What is the function of the tunica media? -- ANSWER--Middle layer that
consists of elastin, smooth muscle fibers, and collagenous tissue, making up the
strength of the vessel. The size of this vessel layer changes drastically in arteries
vs veins
What is the vaso vasorum? -- ANSWER--Supplies the wall of large
arteries/veins by giving nutrients/blood to smooth muscle of the tunica media
What is the tunica adventitia? -- ANSWER--Outer layer comprised of less
connective tissue with bundles of smooth muscle fibers and elastic tissue,
carrying the nerves and vaso vasorum
What are the 5 factors that mainly effect blood flow? -- ANSWER--Cardiac
function
Elasticity of vessel walls
Tone of vascular smooth muscle
Nature of blood
Vessel walls
High resistivity vesel blood has a hard time traveling through which cardiac
phase? -- ANSWER--Diastole
pg. 3
, What is the equation for resistivity index? -- ANSWER--(Vpeak systole - Vend
diastole)/Vpeaksystole
What three things are commonly within a sheath when talking about the
vascular system? -- ANSWER--Artery, Vein, Nerve
What are the three entities of the carotid sheath? -- ANSWER--Carotid artery
Jugular Vein
Vagus nerve
At which spine level does the CCA most often bifurcate? -- ANSWER--C4
What are the 4 segments of the ICA? -- ANSWER--Cervical (what we evaluate)
Petrous
Cavernous
Cerebral
What is the position of the ICA in relation to the ECA? -- ANSWER--
Posterolateral to the ECA, coursing medially
pg. 4
EXAM PRACTICE Q&A TESTED AND
APPROVED NEWLY MODIFIED
How much blood is in each type of vessel in our vascular system? -- ANSWER-
-5% - Capillaries
65% - Veins
30% - Arteries
What is the purpose of Capillaries? -- ANSWER--They are single-walled,
hairsized vessels that connect the arterial and venous systems. Fluid pass
through these walls to provide nutrients to cells and tissues and carry away
waste products
What are the only two veins that don't carry blood back to the heart? --
ANSWER--Pulmonary Vein
Hepatic Portal Vein
What prevents blood flow into expanding capiillaries? -- ANSWER--Sphincters
(open)
pg. 1
,What are the three vessel wall layers? -- ANSWER--Tunica Intima
Tunica Media
Tunica Adventitia
What is the function of and where is the Tunica Intima? What are the layers of
it? -- ANSWER--Tunica intima is the inside layer of the vessel, which forms
valves. It is composed of a single layer of endothelial cells (lumen), connective
tissue layer, and an elastic layer made of elastic fibers
On which side is the Brachiocephalic trunk? What originates from it? --
ANSWER--It is on the right side, and the right subclavian and right CCA are
divided here - right vertebral artery can sometime originate on the trunk,
although it most often originates on the CCA
Where is the CCA in relation to the jugular vein? -- ANSWER--CCA is medial
to jugular
Which CCA is longer and why? -- ANSWER--Left CCA longer due to its
origination from the arch
pg. 2
,What is the function of the tunica media? -- ANSWER--Middle layer that
consists of elastin, smooth muscle fibers, and collagenous tissue, making up the
strength of the vessel. The size of this vessel layer changes drastically in arteries
vs veins
What is the vaso vasorum? -- ANSWER--Supplies the wall of large
arteries/veins by giving nutrients/blood to smooth muscle of the tunica media
What is the tunica adventitia? -- ANSWER--Outer layer comprised of less
connective tissue with bundles of smooth muscle fibers and elastic tissue,
carrying the nerves and vaso vasorum
What are the 5 factors that mainly effect blood flow? -- ANSWER--Cardiac
function
Elasticity of vessel walls
Tone of vascular smooth muscle
Nature of blood
Vessel walls
High resistivity vesel blood has a hard time traveling through which cardiac
phase? -- ANSWER--Diastole
pg. 3
, What is the equation for resistivity index? -- ANSWER--(Vpeak systole - Vend
diastole)/Vpeaksystole
What three things are commonly within a sheath when talking about the
vascular system? -- ANSWER--Artery, Vein, Nerve
What are the three entities of the carotid sheath? -- ANSWER--Carotid artery
Jugular Vein
Vagus nerve
At which spine level does the CCA most often bifurcate? -- ANSWER--C4
What are the 4 segments of the ICA? -- ANSWER--Cervical (what we evaluate)
Petrous
Cavernous
Cerebral
What is the position of the ICA in relation to the ECA? -- ANSWER--
Posterolateral to the ECA, coursing medially
pg. 4
