Ventricular contraction Flashcards
The walls of the ventricles contract which cause what to happen to volume and pressure
Ventricular volume decreases
Ventricular pressure increases
The pressure in the ventricles………….above that in the atria
which causes what to happen and why
rises
This forces the AV(atrioventricular) valves to close, preventing back flow of blood
The pressure in the ventricles rises above that in the …………
aorta and pulmonary artery
he pressure in the ventricles rises above that in the aorta and pulmonary artery
This forces the …………..
which sends the blood where
This forces the semilunar (SL) valves open so blood is forced into the arteries and out of the heart
During the ventricle contraction what coincides with this action
atrial relaxes
As the atrial relaxes blood flow still continues so blood starts to fill ………… again
atria
In ventricular contraction which valves are open and which are closed
atrioventricular closed
semilunar open
