2313

Which of the following states that the greater the stretch of the cardiac muscle cell, the greater
the force of contraction.
a. Bernoulli
b. Doppler
c. Frank-Starling
d. Bernheim

The Frank-Starling law may also be referred to as the:
a. length-tension relationship
b. force-velocity relationship
c. interval-strength relationship
d. isovolumic contraction relationship

The word length in length-tension relationship refers to cardiac:
a. diastole
b. diastasis
c. cell stretch
d. systole

The word tension in length-tension relationship refers to cardiac:
a. diastole
b. diastasis
c. contraction
d. cell stretch

Which of the following terms is defined as the length the cardiac cell is stretched prior to the
next cardiac contraction?
a. afterload
b. preload
c. noload
d. sumload

The pulmonary artery wedge pressure reflects:
a. left atrial pressure
b. right atrial pressure
c. pulmonary artery pressure
d. right ventricular pressure

The central venous pressure reflects the pressure in the:
a. right atrium
b. left atrium
c. left ventricle
d. pulmonary artery

What effect will an increase in preload have on the force of ventricular contraction?
a. decrease
b. increase
c. no change
d. cannot be predicted

All of the following will increase preload of the left heart except:
a. aortic regurgitation
b. mitral regurgitation
c. patent ductus arteriosus
d. aortic stenosis

All of the following conditions will increase right heart preload except:
a. tricuspid regurgitation
b. pulmonary regurgitation
c. ventricular septal defect
d. atrial septal defect

According to Starling's law of the heart, significant mitral regurgitation initially will have which
effect on left ventricular performance?
a. enhance
b. decrease
c. varies
d. cannot be predicted