Respiratory System Review

These are tiny air sacs at the end of the bronchioles where the exchange of oxygen and carbon dioxide take place.

• alveoli

• capillaries

• bronchi

• bronchioles

What letter points to the lung?

• A

• B

• C

• D

What letter points to the trachea?

• C

• B

• E

• D

What letter points to the Alveoli?

• C

• D

• E

• F

What letter points to the Pharynx?

• F

• B

• C

• D

What are the gases that are exchanged in the lungs?

• Nitrogen and Oxygen

• Water and Oxygen

• Oxygen and Carbon Dioxide

• Carbon Dioxide and Water

What happens to diaphragm when we breathe in?

2 answers.

• Contracts

• Relaxes

• Move upwards

• Move downwards

What happens to diaphragm when we breathe out?

2 answers.

• Contracts

• Relaxes

• Move upwards

• Move downwards

The oxygen used during respiration is provided by our

• digestive system

• respiratory system

• circulatory system

 Tiny blood vessels that surround the alveoli are called

• alveoli

• capillaries

• bronchi

• bronchioles