cadiac cycle

What is the direction of the AP

Sa node- interno9dal pathway- AV node- - AV bundle- bundle branches- perkinje fibers

During what part of the AP is there a pause and conductions is slowed

after AV node

what is phase 1 of the cardiac cycle

ventricular filling

what is phase 2 of the cardiac cycle

isovolumetric contraction

what is phase three of the cardiac cycle

ventricular ejection

what is phase four of cardiac cycle

isovolumetric relaxation

during what phase can you hear the first heart beat

phase 2

relaxation of atrium and ventricles contracting the QRS wave is known as what phase

phase 2

semilunar valves opening and begin of ventriuclar ejection is what phase

phase 3

phase 3 occurs when what

when Left ventricle exceeds diastolic pressure

semilunar valves close and every chamber is in diastole is what phase

phase 4

the sound of the second heart beat can be heard in what phase

phase 2

what valves are included in the semilunar valves

pulmonary and aortic valve