Cardiac Cycle Notes

Question 1

atrial pressure ___ ventricular pressure

Answer 1

<

Question 2

right heart pressure ___ left heart pressure

Answer 2

<

Question 3

Cardiac cycle phases

Answer 3

systole
IVRT
diastole
IVCT

Question 4

systole (valves/walls)

Answer 4

MV closed, AV open
LV walls contracted and thickened

Question 5

IVRT (valves/walls/volume/pressure/considered what)

Answer 5

MV and AV closed
LV walls thick, having contracted
volume=same, pressure in ventricles = dropping
after systole
part of diastole

Question 6

diastole (valves/walls)

Answer 6

MV open, AV closed
LV walls thin and compliant

Question 7

diastole phases and brief explanation

Answer 7

early filling: LV expanding/P drop=70% of blood intake
diastasis: LV/LA pressure equal; MV hangs open: atria depolarize
late filling: atria contract; 30% of blood intake

Question 8

IVCT (valves/walls/pressure/considered what)

Answer 8

MV/AV closed
LV walls thin/compliant
after vent fills/pressure rises
part of systole