1.1 the respiratory system

• Biologie
• Middelbare school
• vwo
• Leerjaar 2

Why do we need to breathe?

Put these words in the correct order. (start with inhaling)
Alveoli, bronchiole, bronchi, nasal cavity, pharynx, larynx, trachea

why is it better to breathe through your nose?

to do

- read pages 8, 9, upper part of 10

- write down the difficult words

- we will start making a wordlist

- do excercises 1 till 5 (4 we do together)

homework

study pages 8, 9, 10 upper part

do excercises 1 till 5

Which cells hold onto the dust you inhale?

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

From big to small. Which order is correct?

1. Bronchus - alveoli - bronchioles
2. Alveoli - bronchioles - bronchus
3. Bronchi - bronchioles - alveoli
4. Windpipe - bronchus - bronchi

Name 3 short reasons why it is healthier to breathe through your nose

What are the olfactory cells used for?

1. the exchange of gas molecules
2. clearing the nasal cavity of dust particles
3. they are used for the sense of smell
4. Clearing the bronchiole of dust particles

pharynx, larynx and lower respiratory system

Laughing while drinking soda, might end up in soda leaving your nose because the .... opened

1. Uvula
2. Epiglottis
3. Larynx
4. Pharynx

The vocal chords are located in the ____
Select the best answer

1. Pharynx
2. Larynx
3. The epiglottis
4. The throat

This is the place where the nasal cavity and oral cavity come together

What is the function of the epiglottis ?

1. It makes sure air will enter the oesophagus
2. It closes off the trachea while exhaling
3. It closes off the oesophagus when swallowing
4. It closes off the trachea when swallowing

lower repiratory system

trachea - windpipe

bronchi

brionchioles

alveoli

to do

read pages 10 (from pharynx), 11, 12

write down the difficult words

we will add to the list

do excercises 5 till 8

homework

1: study page 10, 11, 12

do excercise 5 till 8

2: study pages 13, 14, 15 (only gas exchange)

do excercises 9, 10, 15, 17, 18, 19