Which Is a True Statement About the Affect of the Frank-Starling

Multiple Choice

Which is a true statement about the affect of the Frank-Starling law on the heart?

A) Increased diastolic stretching of myocardial fibers produces increased stroke volume.
B) Sympathetic activation leads to increased myocardial contractility and heart rate.
C) An increase in heart chamber diameter increases myocardial wall tension.
D) An increase in coronary artery diameter results in less rapid coronary blood flow.