Vascular ultrasound exam 1 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
Anatomy of Arterial wall - CORRECT ANSWER - Tunica intima(blood flow
Tunitca media(muscular holds together)
Tunica externa(aventitia)(extends&contracts)
stoke volume - CORRECT ANSWER - the amount of blood entering the aorta with each
ventricular contraction
Windkessel effect - CORRECT ANSWER - The expansion and contraction of compliant
vessels. In the aorta the vessel expands and increases the volume within it, then when the
pressure is reduced, the vessel is able to contract to push the remaining blood forward. No
backward flow is allowed due to valves.
Blood flows - CORRECT ANSWER - Laminar
Disturbed
Turbulent
Plug
laminar flow - CORRECT ANSWER - Parabolic
Bullet
Layered
Normal
turbulent blood flow - CORRECT ANSWER - type of blood flow resulting in audible
sound; defined by chaotic flow due to variations of pressure and velocity
, Bernoulli's Principle - CORRECT ANSWER - as the velocity of a fluid increases, the
pressure exerted by the fluid decreases
Poiseville's Law - CORRECT ANSWER - resistance to air flow (R) is proportional to
diameter of a tube raised to the fourth power
R=d^4
Doppler angle - CORRECT ANSWER - The angle between the sound beam and the flow
direction 45-60
spectral broadening - CORRECT ANSWER - the filling of the spectral window
Circle of Willis - CORRECT ANSWER - a circulatory anastomosis that supplies blood to
the brain and surrounding structures
What percent has circle of Willis? - CORRECT ANSWER - 50%
How to open vessel - CORRECT ANSWER - Rotating and angle
transtemporal approach - CORRECT ANSWER - Circle of willis
Trans-orbital approach - CORRECT ANSWER - Ophthalmic artery
Transoccipital approach - CORRECT ANSWER - Basilar artery
First branch of the internal carotid artery - CORRECT ANSWER - ophthalmic artery
First branch of ECA - CORRECT ANSWER - superior thyroid artery
ACTUAL Exam Questions and CORRECT
Answers
Anatomy of Arterial wall - CORRECT ANSWER - Tunica intima(blood flow
Tunitca media(muscular holds together)
Tunica externa(aventitia)(extends&contracts)
stoke volume - CORRECT ANSWER - the amount of blood entering the aorta with each
ventricular contraction
Windkessel effect - CORRECT ANSWER - The expansion and contraction of compliant
vessels. In the aorta the vessel expands and increases the volume within it, then when the
pressure is reduced, the vessel is able to contract to push the remaining blood forward. No
backward flow is allowed due to valves.
Blood flows - CORRECT ANSWER - Laminar
Disturbed
Turbulent
Plug
laminar flow - CORRECT ANSWER - Parabolic
Bullet
Layered
Normal
turbulent blood flow - CORRECT ANSWER - type of blood flow resulting in audible
sound; defined by chaotic flow due to variations of pressure and velocity
, Bernoulli's Principle - CORRECT ANSWER - as the velocity of a fluid increases, the
pressure exerted by the fluid decreases
Poiseville's Law - CORRECT ANSWER - resistance to air flow (R) is proportional to
diameter of a tube raised to the fourth power
R=d^4
Doppler angle - CORRECT ANSWER - The angle between the sound beam and the flow
direction 45-60
spectral broadening - CORRECT ANSWER - the filling of the spectral window
Circle of Willis - CORRECT ANSWER - a circulatory anastomosis that supplies blood to
the brain and surrounding structures
What percent has circle of Willis? - CORRECT ANSWER - 50%
How to open vessel - CORRECT ANSWER - Rotating and angle
transtemporal approach - CORRECT ANSWER - Circle of willis
Trans-orbital approach - CORRECT ANSWER - Ophthalmic artery
Transoccipital approach - CORRECT ANSWER - Basilar artery
First branch of the internal carotid artery - CORRECT ANSWER - ophthalmic artery
First branch of ECA - CORRECT ANSWER - superior thyroid artery
