BIOLOGY AQA B2 Heart

Question 1

Whats the role of the circulatory system?

Answer 1

Transport oxygen and nutrients

Question 2

What 3 things does the circulatory system consist of?

Answer 2

Blood, Heart, Blood vessels

Question 3

How many chambers does the heart consist of?

Answer 3

4 chambers, the right atrium, the right ventricle, the left atrium, the left ventricle

Question 4

How does deoxygenated blood enter the heart?

Answer 4

Vena cava

Question 5

How does deoxygenated blood go to the lungs?

Answer 5

Pulmonary artery (arteries take blood away from the heart)

Question 6

How does oxygenated blood enter the heart?

Answer 6

Pulmonary vein (veins take blood to the heart)

Question 7

How does oxygenated blood go to the whole body?

Answer 7

Out of the Aorta

Question 8

Journey of deoxygenated blood?

Answer 8

The blood starts of deoxygenated and and enters through the vena cava into the right atrium contracts into the right ventricle, the heart contracts again, taking the blood out into the pulmonary artery which will take the blood to the lungs.

Question 9

Journey of oxygenated blood?

Answer 9

the deoxygenated blood flows through the pulmonary vein into the left atrium and contracts to the left ventricle, the heart contracts again taking the blood to the aorta to travel through the whole body.

Question 10

What do pacemakers do?

Answer 10

Provide electrical impulses

Question 11

What are coronary arteries?

Answer 11

They cover the heart and provide nutrients and oxygen