During exercise, SV increases as a result of __________.

Question

Quizplus · Accepted Answer

The Frank-Starling law describes how an increase in venous return (an increase in the amount of blood returning to the heart) stretches the ventricles, causing increased cardiac muscle fiber length and resulting in a more forceful contraction and increased SV. Increased HR, ejection fraction, and pulmonary artery pressure can also impact SV to some degree, but the Frank-Starling law is the primary mechanism for SV increase during exercise.

During Exercise, SV Increases as a Result of __________