2313

Which of the following refers to the load production that the myocardium must produce during
ventricular systole?
A. force
B. preload
C. velocity
D. systole

Which of the following terms refers to the rate of myocardial fiber shortening?
A. systole
B. velocity
C. preload
D. force

Force and velocity are
A. directly related
B. unrelated
C. inversely related
D. porportional

With an increase in force, the velocity of fiber shortening will:
A. increase
B. varies
C. cannot be predicted
D. decrease

With a decrease in force, the velocity of fiber shortening will:
A. decrease
B. remain unchanged
C. increase
D. cannot be determined

Which of the following terms refers to the resistance a ventricle faces during ejection?
A. afterload
B. diastole
C. systole
D. velocity

What effect will an increase in afterload have on myocardial force?
A. cannot be predicted
B. no change
C. increase
D. decrease

What effect will an increase in afterload have on myocardial fiber shortening velocity?
A. no change
B. increase
C. decrease
D. cannot be predicted

What effect will an increase of afterload have on cardiac performance?
A. undetermined
B. no change
C. increase
D. decrease

Which of the following statements is true concerning valvular aortic stenosis?
A. decrease in ventricular force, increase in velocity and an increase in afterload
B. increase in ventricular force, velocity and afterload
C. increase in ventricular force, decrease in velocity and an increase in afterload
D. decrease in ventricular force, velocity and afterload