7.5 Cardiac Cycle Flashcards
1
Q
What is diastole
A
Relaxation of the heart
2
Q
What is systole?
A
Contraction of the heart
3
Q
What is diastolic pressure?
A
Relaxed blood pressure
4
Q
What is systolic pressure?
A
Contracted heart pressure
5
Q
What is atrial systole?
A
Atrium contracting
6
Q
Ventricular systole?
A
Ventricles contracting
7
Q
Describe the 3 stages of the cardiac cycle
A
1- blood flows into atria and ventricles, atrioventricular valves open, semi lunar valves close, relaxed ventricles
2- atria contracts to push remaining blood into ventricles, atrioventricular valves open, semi lunar closed, atria contracting
3- ventricles contract and thicken, atrioventricular valves close, semi lunar open
8
Q
What is the equation for cardiac output?
A
Heart rate X stroke volume
