Cardiac Cycle Flashcards
1
Q
What are the 5 main events of the cardiac cycle?
A
1 - Passive Filling
2 - Atrial Contraction
3 - Isovolumetric Ventricular Contraction
4 - Ventricular Ejection
5 - Isovolumetric Ventricular Relaxation
2
Q
What is meant by a dicrotic notch?
A
A small spike in aortic pressure found after ventricular ejection
3
Q
Describe the graphs for vessel pressures in the cardiac cycle
A
4
Q
What causes the 1st heart sound?
A
Closure of the AV (Mitral and Tricuspid) valves
5
Q
What causes the 2nd heart sound?
A
Closure of the Semi-lunar (Aortic and Pulmonary) valves?
6
Q
What is a normal JVP?
A
< 3cm
