cycle

1-5

100

atrial systole causes atria to

depolarize/contract together and decrease volume

200

what is phase one of the cardiac cycle

artial systole

300

atrial systole causes ventricles to

get volume and pressure to increase

400

what is phase 2 of cardiac cycle

atrial diastole

500

atrial diastole causes atria to do what

repolarize/relax together and then fill

5-10

100

what is phase 3 of cardiac cycle

ventricular systole

200

ventricular systole causes ventricles to empty by what doing what

depolarize/contract together, volume decreases and pressure increases

300

what is phase 4 of cardiac cycle

ventricular diastole

400

ventricular diastole causes ventricles to

fill, repolarize/relax together, volume increases and pressure decreases

500

atrial systole occurs where on an ECG

P-R segment

10-13

100

atrial diastole occurs where on ECG

P wave

200

Ventricular systole occurs where on an ECG

QRS complex

300

Ventricular diastole occurs where on a ECG

T wave