Cardiovascular system - cardiac cycle Flashcards

1
Q

Atrial Diastole

A

All heart muscle in relaxation
All heart valves closed
Blood returning to atria

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2
Q

Atrial Systole

A

Atria contraction
AV valves in contraction
Blood to ventricles

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3
Q

Ventricular Systole

A

Ventricles in contraction
Semilunar valves open
Blood passing to arteries

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4
Q

Ventricular Diastole

A

All heart muscle in relaxation
All valves closed
Blood returning to atria

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