§1.3/1.4 The Respiratory system

• Biologie
• Middelbare school
• vwo
• Leerjaar 3

1.3 The respiratory system

 REVISION 

The photosynthesis reaction is:

... + 'energy' --> Glucose + O2

1. CO2 & H2O
2. CO2
3. H2O
4. Sunlight

Animals get their energy from glucose

1. True
2. False

a bit

a lot

How much respiration?

Here comes a lot of names...

This lesson

- Parts of the respiratory system

Glucose + Oxygen --> Water + CO2 + 'energy'

Gases enter and leave our body through the respiratory system

A process called respiration

Nasal and oral cavity

Nasal and oral cavity

Pharynx

Swallowing

Choking

Trachea (windpipe)

Alveoli

The vocal cords can be found in the ...

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

Which part separates the nasal cavity from the oral cavity?

The branches of the windpipe are called ...

1. Bronchi
2. Bronchioles
3. Alveoli
4. Oesophagus

How does the body keep dust particles and bacteria from entering your respiratory system?

Exhaled air has a higher concentration CO2 than inhaled air

True

False

No change

§1.4 Breathing

- Gas exchange

- Mechanical process of breathing

Respiration in cells

Glucose + Oxygen --> Water + CO2 + 'energy'

Oxygen enters the cells

CO2 leaves cells

Blood vessels transport these substances to and from the lungs

Alveolus/Alveoli

Alveoli

Very thin cell layers (± 1 cell thick)

Gases can flow freely from blood to alveoli and back

Breathing in

Breathing out

Mechanical breathing

Two types:

- Chest breathing

- Abdominal breathing

Chest breathing

Abdominal breathing

Diaphragmatic breathing is used during / in...

1. your sleep and while resting
2. action
3. both
4. neither

Put the organs in the correct order

Air enters the body

Gas exchange

Nasal cavity

Alveoli

Pharynx

Larynx

Bronchi

Bronchioles

Trachea

off to work

1.3 TO 1.4 

READ 1.5