1.5 Healthy airways

• Biologie
• Middelbare school
• vwo
• Leerjaar 3

Today's lesson

Review 1.1 t/m 1.4

Do 1.5 

-how to keep your airways healthy

-You can explain what hay fever is

Discuss 1.4 Q 6, 8 and do Q 9

Thoracic inhalation:

air is sucked into the lungs

intercostal muscles contract

ribs pull the plearul membrane open

the plearul membrane pulls open the lungs

ribs move up

Drag the boxes on the right to the correct place in the picture.

Alveolus

Oxygen

Red blood cell

Blood with little oxygen

Blood with lots of oxygen

Air

CO2

Abdominal inhalation:

air is sucked into the lungs

abdominal muscles contract

the diaphragm moves down

the plearul membrane pulls open the lungs

the diaphragm pulls the pleural membrane open

§1.5 Healthy airways

What is bad for your lungs?

Smoking

Healthy

Smoking

COPD

(Chronic Obstructive Pulmonary Disease)

Smog

Dust

Hay fever/asthmatic attack

How to keep your lungs healthy?

- Exercise/sports

- Fresh air

- No smoking!

Do Qs 1 t/m 3 and 5 t/m 9