The cardiac cycle and coronary flow Conduction System https wwwyoutubecomwatchvA2YoGyNhAns Coronary flow https wwwyoutubecomwatchvtBQa8IBzP6I Summary The conduction system of the heart is composed ID: 911461
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Slide1
The heart’s physiology
The cardiac cycle and coronary flow
Slide2Conduction System
https://
www.youtube.com/watch?v=A2YoGyNhAns
Slide3Coronary flow
https://
www.youtube.com/watch?v=tBQa8IBzP6I
Slide4Summary
The conduction system of the heart is composed
sino
-atrial node ( SA node or pacemaker of the heart)
atrio
-ventricular node (AV)
right and left bundle
The electrical conduction precedes the mechanical response of the heart muscle that lead to the relaxation (diastole) and contraction (systole) components of the cardiac cycle
Coronary blood flow occurs during diastole
The heart muscle (myocardium) extracts oxygen needed to function