Ventricular contraction

Question 1

The walls of the ventricles contract which cause what to happen to volume and pressure

Answer 1

Ventricular volume decreases

Ventricular pressure increases

Question 2

The pressure in the ventricles………….above that in the atria

which causes what to happen and why

Answer 2

rises

This forces the AV(atrioventricular) valves to close, preventing back flow of blood

Question 3

The pressure in the ventricles rises above that in the …………

Answer 3

aorta and pulmonary artery

Question 4

he pressure in the ventricles rises above that in the aorta and pulmonary artery
This forces the …………..

which sends the blood where

Answer 4

This forces the semilunar (SL) valves open so blood is forced into the arteries and out of the heart

Question 5

During the ventricle contraction what coincides with this action

Answer 5

atrial relaxes

Question 6

As the atrial relaxes blood flow still continues so blood starts to fill ………… again

Answer 6

atria

Question 7

In ventricular contraction which valves are open and which are closed

Answer 7

atrioventricular closed

semilunar open