The Heart ❤️❤️❤️

Question 0

What do the valves do

Answer 0

Prevent the back flow of blood

Question 1

What does exercise do to the body

Answer 1

1. you respire more
2. increases the amount of co2 in the blood
3. your heart rate increases
4. the heart contracts more frequently

Question 2

1. The right atrium receives

Answer 2

Deoxygenated blood from the body through the vena cava

Question 3

2. The deoxygenated blood moves through to the

Answer 3

Right ventricle which pumps it to the lungs through the pulmonary artery

Question 4

3.the left atrium receives the

Answer 4

Oxygenated blood from the lungs through the pulmonary vein

Question 5

4.the oxygenated blood moves through to the

Answer 5

Left ventricle which pumps it out the round the whole body through the aorta

Question 6

Why does the left ventricle have a much thicker wall than the right ventricle

Answer 6

Because it needs more muscle to pump blood round the whole body whereas the right ventricle only has to pump it to the lungs. This means the blood in the left ventricle is under more pressure