Blood Circulation In The Heart - Summary

Blood circulation in the heart - GCSE Biology Summary sheet

1) Deoxygenated venous blood reutrns to the heart via the suprior and inferior vena cava.

2) The vena cava drain into the ________ atrium.

3) Atrial systole (also `diastole` ventricles are filling) deoxygenated blood drains into the right ventricle through the _________ valve.

4) During venticular systole (also `systole`) the deoxygenated blood flows out of the heart through the pulmonary arteries (also pulmonary trunk). The pulmonary valve in the pulmonay trunk is a type of ________ valve.

5) The deoxygenated blood travels to the lungs to become oxygenated by gas exhange between alveoli and capillaries.

6) The oxygenated blood enters the left atrium via pulmonary veins. (veIN-to the heart, A-way Arteries away from the heart)

7) During diastole- oxygenated blood enters the left ventricle through the __________ valve.

8) During systole, oxygenated blood exits the heart to be circulated around the body via the aorta through the _________ valve.

Next - electrical conduction of the heart