Pressure changes Flashcards
1
Q
What is pressure changes are occurring at the ‘dicrotic notch’ on a pressure diagram?
A
When the aortic valve closes, the pressure slightly increases.
2
Q
On the pressure change diagram for the left atrium, what do points A, C and V represent?
A
A- represents atrial systole
C- represents blood crashing of the mitral valve when it closes
V- represents the mitral valve opening, the left atrium pressure reaches the pressure level of the relaxing ventricle. Rapid decline in pressure of left atrium.
3
Q
What structures prevent the valve from buckling inwards?
A
Chordae tendonae and papillary muscles
