Circulatory system

Question 1

What do the coronary arteries do?

Answer 1

Coronary arteries carry blood to the heart. They supply the heart muscles with the oxygen and nutrients they need to pump blood through the body

Question 2

Causes of a stroke

Answer 2

• Blocked blood flow to the brain
• Sudden bleeding in brain
• High blood pressure
• Diabetes
• Irregular and fast heartbeats

Question 3

Causes of a heart attack

Answer 3

• smoking
• high-fat diet
• diabetes
• high cholesterol
• high blood pressure (hypertension)
• being overweight or obese.

Question 4

What’s double circulation?

Answer 4

A circulatory system where blood passes through the heart twice and has two separate circuits, one for oxygenated blood and one for deoxygenated blood

Question 5

Label the 4 chambers and 4 blood vessels in the heart

Answer 5

Book

Question 6

What are the roles of the different parts of the blood?

Answer 6

• Red blood cell: carry oxygen
• White blood cell: Defence against disease
• Platelets: clot blood and help form scabs
• Plasma: transporting hormones, digested food, urea and carbon dioxide

Question 7

What’s the role of the circulatory system?

Answer 7

• Transport blood around the body
• Protect against disease

Question 8

What’s the circulatory system made up of?

Answer 8

• Heart
• Blood
• Blood vessels