Cardiac Cycle

Question 1

Principles of pressure and flow

Question 2

Cardiac cycle definiton

Answer 2

one complete contraction and relaxation of the heart

Question 3

Systole definition

Answer 3

contraction

Question 4

Diastole definition

Answer 4

relaxation

Question 5

What is happening on the left and right sides of the heart during cardiac cycle

Question 6

Stages of the cardiac cycle

Answer 6

atrial systole, ventricular systole/atrial diastole, ventricular diastole

Question 7

What events lead to the two major heart sounds

Answer 7

S1 “lubb”: occurs at the beginning of a ventricular stroke; caused by tensing of ventricular tissue

S2 “dupp”: occurs during isometric relaxation; caused by blood backflow quickly filling valve cusps

Question 8

Valvular insufficiency definiton

Answer 8

any failure of a valve to prevent the backflow of blood

Question 9

Valvular stenosis definition

Answer 9

cusps are stiffened and opening is constricted by scar tissue

Question 10

Heart murmur definition

Answer 10

abnormal heart sound