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
C
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
A
The word length in length-tension relationship refers to cardiac:
a. diastole
b. diastasis
c. cell stretch
d. systole
C
The word tension in length-tension relationship refers to cardiac:
a. diastole
b. diastasis
c. contraction
d. cell stretch
C
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
B
The pulmonary artery wedge pressure reflects:
a. left atrial pressure
b. right atrial pressure
c. pulmonary artery pressure
d. right ventricular pressure
A
The central venous pressure reflects the pressure in the:
a. right atrium
b. left atrium
c. left ventricle
d. pulmonary artery
A
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
B
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
D
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
C
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