The cardiac cycle

Question 1

what happens in late diastole phase of the cardiac cycle

Answer 1

both sets of chambers are relaxed ventricles fill passively

Question 2

what happens during atrial systole

Answer 2

atrial contraction forces a small amount of blood into the ventricles

Question 3

what happens during isovolumic ventricular contraction

Answer 3

1st phase of ventricular contraction, it pushes AV valves shut but there is still not enough pressure to open the semilunar valves

Question 4

how would you calculate pulse pressure

Answer 4

systolic pressure subtract diastolic pressure

Question 5

what does the A wave represent

Answer 5

right atrial contraction, occurs just after the P wave

Question 6

what does the C wave represent

Answer 6

C wave occurs due to isovolumic ventricular contraction forcing the tricuspid valve to bulge upwards into the RA

Question 7

what does the V wave represent

Answer 7

v wave forms from the RA continuing to fill during late ventricular systole