Topic 4 - The Heart

Question 1

What type of organ is the heart?

Answer 1

Muscular

Question 2

What does the right pump in the heart do?

Answer 2

Forces oxygenated blood to the lungs where it picks up oxygen and loses carbon dioxide

Question 3

Once the blood returns to the heart, what happens?

Answer 3

Oxygenated blood is then pumped to the rest of the body by the left pump

Question 4

How many chambers does the heart have?

Answer 4

4

Question 5

What is the upper chambers called?

Answer 5

Atria

Question 6

Where does the right atrium receive blood from?

Answer 6

The vena cava

Question 7

Where does the left atrium receive blood from?

Answer 7

Pulmonary vein

Question 8

What does the atria do?

Answer 8

Contracts together to move blood into the lower chambers

Question 9

What are the lower chambers called?

Answer 9

Ventricles

Question 10

What happens when the ventricles contract?

Answer 10

Force blood out of the heart

Question 11

What does the right ventricle do?

Answer 11

Pushes blood into the pulmonary artery

Question 12

What does the left ventricle do?

Answer 12

Pushes blood into the aorta

Question 13

What does the left ventricle have?

Answer 13

Thicker walls

Question 14

What do the valves do in the heart do?

Answer 14

Prevent the blood from flowing in the wrong direction

Question 15

How is the heart muscle supplied with oxygenated blood?

Answer 15

By the coronary arteries

Question 16

How does coronary heart disease occur

Answer 16

When the coronary arteries become blocked or narrower due to a build up of fatty material inside of them

Question 17

How can you open up an artery?

Answer 17

Doctors can use a stent which allows the blood to deliver nutrients and oxygen to the heart muscle again

Question 18

What does bypass heart surgery do?

Answer 18

Replaces damaged coronary arteries with lengths of veins

Question 19

What are statins prescribed for?

Answer 19

To lower cholesterol which in turn reduces the build up of fatty material in the arteries