The heart

Question 1

What is the top left chamber of the heart on the diagram?

Answer 1

Right atrium

Question 2

What is the top right chamber of the heart on the diagram?

Answer 2

Left atrium

Question 3

What is the bottom left chamber of the heart on the diagram?

Answer 3

Right ventricle

Question 4

What is the bottom right chamber of the heart on the diagram?

Answer 4

Left ventricle

Question 5

What is the left input on the diagram called?

Answer 5

Vena cava

Question 6

What is the left output on the diagram called?

Answer 6

Pulmonary artery

Question 7

What is the right output on the diagram called?

Answer 7

Aorta

Question 8

What is the right input on the diagram called?

Answer 8

Pulmonary vein

Question 9

Where is the shape of the muscular heart wall thicker and why?

Answer 9

Thicker on the left (right on diagram) because it has to pump blood all around the body

Question 10

Why does the heart have valves?

Answer 10

So blood doesn’t flow backwards

Question 11

What does the Vena Cava do?

Answer 11

Brings deoxygenated blood into the heart

Question 12

What does the pulmonary artery do?

Answer 12

Takes deoxygenated blood to the lungs

Question 13

What does the aorta do?

Answer 13

Carries oxygenated blood around the body

Question 14

What does the pulmonary vein do?

Answer 14

Brings oxygenated blood from the lungs

Question 15

Is the aorta a vein or an artery?

Answer 15

Artery

Question 16

Is the Vena Cava a vein or an artery?

Answer 16

Vein

Question 17

What is the difference between veins or arteries? (3 differences)

Answer 17

• Arteries carry blood away from the heart
• Veins carry blood towards the heart
• Arteries carry oxygenated blood (except pulmonary artery)
• Veins carry deoxygenated blood
• Arteries have thicker, more muscular walls because of higher pressure
• Veins have thinner walls because of lower pressure

Question 18

What does pulmonary mean?

Answer 18

Relating to the lungs

Question 19

What are coronary arteries?

Answer 19

They supply blood to the heart muscle

Question 20

What is coronary heart disease? (and causes and cures and why it’s bad)

Answer 20

-The coronary arteries, which supply blood to the heart muscles, become narrow.
- Usually caused by a buildup of fatty material
- Its bad because it reduces bloodflow to the heart muscle, which can cause heart attacks, pain and even death
- Stent and statin can cure coronary heart disease

Question 21

What is a stent?

Answer 21

A metal mesh that is placed in the artery then inflated by a small balloon. Once the balloon is removed, the mesh stays open, holding the artery open

Question 22

What is a statin?

Answer 22

Medicine that reduce blood cholesterol levels, slowing down the rate at which fatty material is deposited in the coronary arteries

Question 23

Pros and cons of stent

Answer 23

Pros:
- Works for a long time
- Fast recovery from surgery
Cons:
- Needs surgery (risk of infection)

Question 24

Pros and cons of statin

Answer 24

Pros:
- Decreases blood cholesterol
- No surgery
Cons:
- Needs to be taken regularly
- Will have possible side effects
- Long term
- Effects take time