Circulation Mock

Question 1

A

Answer 1

Right atrium

Question 2

B

Answer 2

Right ventricle

Question 3

C

Answer 3

Left atrium

Question 4

E

Answer 4

Vena cava

Question 5

D

Answer 5

Left ventricle

Question 6

F

Answer 6

Pulmonary artery

Question 7

G

Answer 7

Aorta

Question 8

Function of the septum

Answer 8

Dividing wall between right and left side of heart

Stops oxygenated blood mixing with deoxygenated blood

Question 9

Function of tricuspid and bicuspid valves

Answer 9

To help prevent back flow of blood from ventricle to atrium

Question 10

Function of semi lunar valves

Answer 10

Valves that are located at the aorta and pulmonary artery

They stop blood flowing back into the heart

Question 11

Function of coronary arteries

Answer 11

Carry blood to capillaries that supply the heart muscle with oxygen

Question 11

Describe coronary arteries and what causes coronary heart disease and heart attacks

Answer 11

The coronary arteries supply blood to the heart muscle. These may become blocked by a build-up of fatty plaques containing cholesterol, resulting in coronary heart disease.

If a coronary artery is blocked, the blood supply to part of the heart muscle is cut off. This means the heart is no longer gaining oxygen so it cant respire. That part of the heart cannot continue to contract, causing a heart attack.

Question 12

What factors increase the chance of coronary heart disease and why?

Answer 12

poor diet – eating more saturated fat increases cholesterol levels
stress and smoking – increases blood pressure

Question 13

4 risks of smoking related to cardiovascular disease

Answer 13

1. Smoking damages the lining of the arteries, including the coronary arteries. The damage encourages the build-up of fatty material in the arteries. This can lead to a heart attack or a stroke.
2. Inhalation of carbon monoxide in cigarette smoke reduces the amount of oxygen that can be carried by the blood.
3. The nicotine in cigarette smoke increases the heart rate, putting strain on the heart.
4. Chemicals in cigarette smoke increase the likelihood of the blood clotting, resulting in a heart attack or stroke.

Question 14

What lung related disease can smoking cause and what are 3 symptoms.

Answer 14

COPD – chronic obstructive pulmonary disease

1. smoking damages the bronchioles and can eventually destroy many of the alveoli in the lungs
2. the airways become inflamed and mucus, which normally traps particles in the lungs, builds up
3. the patient becomes breathless, and finds it more and more difficult to obtain the oxygen required for aerobic respiration