Module 2 Flashcards
Which of the following vessels has the lowest resistance
Inferior vena cava
Where is the highest vascular pressure found in the body
Heart
Which vessel would have a high resistant profile
Common femoral artery
Vasoconstriction and dilation typically occur in which vessels
Capillaries
Which of the following is a true statement
Vasodilation results from inflammation
Blood will move from the left ventricle of the heart into the aorta when:
The pressure in the left ventricle is higher then the pressure in the aorta
Which of the following causes the biggest change in blood velocity in a vessel
Change in the radius of a vessel
Hydrostatic pressure in a supine patient is approximately
15 mmHg
Which of the following is not considered a component of the calf muscle group
Phasic blood flow
The resistance of movement of one layer of blood against another layer or the vessel wall is known as
Friction
In a stenotic vessel, where is the kinetic energy the greatest
At the level of the stenosis
Turbulent flow is seen in what area of a stenotic vessel
Just distal to the site of the stenotic lesion
A critical stenosis is determined by a diameter reduction of 50%. In a circumferential stenosis this corresponds to a ___ area reduction.
75%
What happens to pressure at the level of a hemodynamically significant stenosis.
It decreases.
Which is the following best describes the effects of exercise on blood flow in a non-diseased vessel
Exercise causes arteriole vasodilation
