The Circulatory System

Question 1

What are the circulatory system function?

Answer 1

The circulatory system helps transport oxygen, glucose, carbon dioxide and nutrients around the body​

Controls the body temperature​

Protects the body as the blood contains cells and antibodies to fight off infection

Question 2

Features of veins?

Answer 2

Transports unoxygenated blood back to the heart, thin walls

Question 3

Features of arteries?

Answer 3

Transports oxygenated blood to muscles to supply them with oxygen and nutrients, thick walls

Question 4

Features of capillaries?

Answer 4

Allows gaseous exchange, they’re one cell wall thick

Question 5

How does age, gender, diet, exercise and stress affect your blood pressure?

Answer 5

Age – increases with age​
Gender – males tend to have higher blood pressure that women​
Stress – can increase your blood pressure ​
Diet – salt and saturated fats can increase blood pressure ​Exercise – regular exercises can lower your blood pressure gradually

Question 6

What are red blood cells?

Answer 6

Contains red coloured compounds called hemoglobin which bonds with oxygen to form oxyhaemobin​, they transports oxygen to tissues

Question 7

What are white blood cells?

Answer 7

Produces chemicals called antibodies to fight infection

Question 8

What are platelets?

Answer 8

Help repair tissue and close wounds both internally and externally