Look at the info sheet on lung diseases:

1) Explain why asthma cause breathing difficulties – sketch the diagram to help your explanation

2) Explain why emphysema cause breathing difficulties – sketch the diagram to help your explanation

3) Explain why bronchitis results in a reduced rate of gas exchange in the lungs. 4) Explain why someone with a severe case of pneumonia may need extra oxygen.

Asthma

Emphysema

• Caused by exposure to toxic chemicals or long-term exposure to tobacco smoke.

How does smoking affect the lungs?Which picture shows the healthy lungs of a non-smoker and which show the unhealthy lungs of a smoker?

healthy lungs smoker’s lungs

Not a difficult question to answer but some people still think that smoking is cool!

How does smoking affect health?

Effects of smoking on health

bronchitis

liver cancer

osteoporosis

mouth, lip andthroat cancer

asthmalung cancerdental hygiene

problems

facial wrinkles

pancreatic cancer

impairedimmune system

heart disease

cervical cancer

kidney cancer

sperm abnormalities and impotence

bladder cancer

leukaemia

emphysema

stomach cancertesticular cancer

menstrualproblems

Emphysema