10: Cardiac Cycle Flashcards
1
Q
In which phase do dicrotic notch and incisura occur?
A
Isovolumetric relaxation
2
Q
Why is it important for AV node to be a little slow to transmit impulse?
A
Gives atria time to fully contract before ventricles begin
3
Q
Highest and lowest pressure in ventricles associated with what?
A
Highest: systolic BP
Lowest: diastolic pressure of ventricles
4
Q
Normal aortic pressure
A
120/70
5
Q
Normal pulmonary artery pressure
A
25/15
6
Q
What is jugular pressure slightly higher than?
A
Atrial pressure
7
Q
Max and min volume of the ventricles
A
Max: 100-120
Min: 50-60
8
Q
What two heart sounds are normal in children but typically not heard in adults?
A
Sounds 3 and 4
