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law of the heart
the energy liberated by the heart when it contracts is a function of the length of its muscle fibers at the end of diastole.
Synonym(s): Starling law
A law that states that the force of blood ejected by the heart is determined primarily by the length of the fibers of its muscular wall (i.e., an increase in diastolic filling lengthens the fibers and increases the force of muscular contraction).
See also: Starling, Ernest Henry