C05 - The Cardiovascular System

Question 1

Define the Cardiovascular System?

Answer 1

Comprises of the heart, a series of interconnected channels and the blood vessels which carry blood around the body.

Question 2

Define Arteries?

Answer 2

Carry oxygenated blood from the heart to the body tissues.

Question 3

Define Arterioles?

Answer 3

Control the supply of blood to the organs.

Question 4

Define Capillaries?

Answer 4

Responsible for gas and nutrient exchanges between blood and cells.

Question 5

Define Veins?

Answer 5

Drain oxygenated blood from the tissues back to the heart.

Question 6

Define Blood?

Answer 6

A fluid called Plasma which contains Red Blood Cells, White Blood Cells and Platelets.

Question 7

What is the purpose of Red Blood Cells?

Answer 7

Carries Oxygen.

Question 8

What is the purpose of White Blood Cells?

Answer 8

Fights infection and diseases.

Question 9

What is the purpose of Platelets?

Answer 9

Repair blood vessels after an injury.

Question 10

Blood Cells have a lifespan of ‘____’?

Answer 10

120 Days.

Question 11

Where is blood made from?

Answer 11

Bone Marrow.

Question 12

Define Anaemia?

Answer 12

A condition of having excessive low Red Blood Cells or reduced Haemoglobin levels.

Question 13

How is Anaemia caused?

Answer 13

Iron Deficiency.

Question 14

Carbon Monoxide will bind ‘____’ times more readily with Haemoglobin than Oxygen?

Answer 14

200.

Question 15

True or False. A victim of Carbon Monoxide Poisoning will suffer from Hypoxia with signs of Cyanosis?

Answer 15

False. No sign of Cyanosis is present with Carbon Monoxide Poisoning.

Question 16

Name the two ways of contracting Carbon Monoxide Poisoning?

Answer 16

• Cigarettes.

- Internal Combustion Engines.

Question 17

Define a Pulse?

Answer 17

Rhythmic contraction of the heart muscle.

Question 18

Define Coronary Arteries?

Answer 18

Arteries which supply the heart muscle.

Question 19

Define Cardiac Cycle?

Answer 19

The heart’s muscle repeating pattern of contraction and relaxation.

Question 20

Define the Diastole stage?

Answer 20

When the heart muscle is relaxed.

Question 21

Define the Systole stage?

Answer 21

When the heart muscle contracts.

Question 22

Define Stroke Volume?

Answer 22

The volume of blood pumped out the Ventricles during the Systole stage.

Question 23

What is Blood Pressure measured in?

Answer 23

mmHg.

Question 24

What is the average Blood Pressure?

Answer 24

120mmHg / 80mmHg.

Question 25

Define Hypertension and its Blood Pressure number (2)?

Answer 25

• Abnormally High Blood Pressure.

- 140/90.

Question 26

Name three causes of Hypertension?

Answer 26

• Age.
• Family History.
• Obesity.

Question 27

Define Hypotension?

Answer 27

Abnormally Low Blood Pressure.

Question 28

True or False. Hypertension and Hypotension can disqualify a Pilot’s licence?

Answer 28

True.

Question 29

Define Angina?

Answer 29

Progressive narrowing of the Coronary Arteries and Veins.

Question 30

What factors can we control in preserving Cardiovascular Health (5)?

Answer 30

• Hypertension.
• High Blood Cholesterol.
• Obesity.
• Lack of Exercise.
• Smoking.