What in essence is Frank-Starling's law of the heart?
a. The greater the stretch, the stronger the contraction.
b. The less the afterload, the greater the ejec-tion fraction.
c. Describes the inverse relationship between diameter and resistance to flow.
d. Curves show the hysteresis variations be-tween systole and diastole.
ANS: A
According to Frank-Starling's law, the more a cardiac fiber is stretched, the greater the tension it generates when contracted.
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