Cardiac cycle

Question 1

late diastole

Answer 1

both sets of chambers are relaxed and ventricles fill passively

Question 2

ventricular ejection

Answer 2

as ventricular pressure rises and exceeds pressure in the arteries, the semilunar valves open and blood is ejected

Question 3

isovolumic ventricular relaxation

Answer 3

as ventricles relax, pressure in ventricles falls, blood flows back into cusps of semilunar valves and snaps them closed

Question 4

isovolumic ventricular contraction

Answer 4

first phase of ventricular contraction pushes AV valves closed but does not create enough pressure to open semilunar valves

Question 5

ventricular ejection

Answer 5

as ventricular pressure rises and exceeds pressure in the arteries, the semilunar valves open and blood is ejected

Question 6

stroke volume is

Answer 6

difference between EDV and ESV it is the volume ejected with each heart beat

Question 7

ejection fraction is

Answer 7

SV/EDV measurement of the percentage of blood leaving your heart each time it squeezes (contracts)

Question 8

mean arterial pressure

Answer 8

average pressure in a patient’s arteries during one cardiac cycle

Question 9

normal heart sounds are caused by

Answer 9

closure of the AV, closure of the semi lunar valves, rapid passive filling phase, active filling phase.

Question 10

abnormal heart sounds are called

Answer 10

murmurs

Question 11

systolic murmurs caused by

Answer 11

narrowing of aortic or pulmonary valve or regurgitation through mitral or tricuspid valve that should be closed

Question 12

diastolic murmur caused by

Answer 12

narrowing of mitral or tricuspid valve or regurgitation through aortic or pulmonary valves that should be closed

Question 13

continuous murmur caused by

Answer 13

hole in the septum