Heart Rate - The number of times that the heart beats per minute (bpm)., Anticipatory Rise of HR - The increase in HR BEFORE exercise starts., Stroke Volume - Volume of blood ejected from the heart in one beat., Cardiac Output - Volume of blood ejected from the heart in one minute., Sympathetic Nervous System - Part of the autonomic nervous system that speeds up HR and initiates fight or flight., Starlings Law - the relationship between the stretch of the cardiac muscle and stroke volume., Blood Pressure - Measure of arterial pressure exerted upon the walls of the blood vessels, as a result of the hearts contractions., Cardiac Cycle - Electrical events of the heart causing contraction.,  Redistribution - Redirection of blood, known as shunting. Including Vasodilation & Vasoconstriction, Diffusion - Movement of molecules (gasses) from high concentration to low concentration, A-VO2 Diff - The difference between oxygen concentration in the arterial blood compared to the venous blood.,

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