The heart

Question 1

1) Right atrium

Answer 1

Receives deoxygenated blood from the body through the Vena Cava

Question 2

2) Right ventricle

Answer 2

Deoxygenated blood moves through the right ventricle whih pumps it to the lungs via the pulmonary artery

Question 3

3) Left atrium

Answer 3

Recieves oxygenated blood from the lungs through the pulmonary vein

Question 4

4) Left ventricle

Answer 4

Oxygenated blood moves through to the left ventricle which pumps it out round the whole body via the aorta

Question 5

Left ventricle

VS Right ventricle

Answer 5

Left ventricle has a much thicker wall
Needs more muscle as it has to pump blood around the whole body whereas the right ventricle only has to pump it to the lung
Blood in left ventricle is at a much higher pressure

Question 6

Valves

Answer 6

Prevent the backflow of blood