1.1 The respiratory system

• Biologie
• Middelbare school
• vwo
• Leerjaar 3

1.1 The respiratory system

Questions

- Why do we breathe?

- Where does oxygen come from?

- What happens with the oxygen in our body?

- How are the digestive system, the circulatory system and the respiratory system connected? What is their relation?

nasal cavity

oral cavity

nostril

larynx

lung

bronchus

trachea

diaphram

pharynx

WHAT TYPE OF BREATHING IS BETTER FOR YOUR HEALTH?

1. BREATHING THROUGH YOUR NOSE
2. BREATHING THROUGH YOUR MOUTH

Name as many reasons as you can why it is better to breath in through your nose

Which one holds onto the smaller dust particles you inhale?

1. Olfactory sytem
2. Mucus
3. Nose hairs
4. Ciliated cells