Law of the heart

Definition

noun

The force of contraction depends on the length of muscle fibers of the heart wall.


Supplement

The greater the stretch of cardiac muscle, the greater the force of contraction. This means that when there is an unusual increase in volume of blood entering the heart, the ventricular wall stretches causing the cardiac muscle to contract more forcefully. Since there is an increase of the load experienced by each muscle fiber the result is greater heart contraction and beat.


Also called: Starling's law, Frank-Starling law of the heart, Frank-Starling mechanism.


Please contribute to this project, if you have more information about this term feel free to edit this page



This page was last modified on 30 July 2008, at 08:31. This page has been accessed 2,761 times. 
What links here | Related changes | Permanent link