Respiratory system- structure and function

What is the function of the bronchi?

• Carry the air into the lungs.

• Decrease in size and carry air to the alveoli.

• Warms, moistens and filters air entering the respiratory system.

Look at the image.

Which part is the trachea?

• B

• E

• A

• F

What is the function of the trachea?

• Allows air to pass into the lungs.

• The main organs of the respiratory system.

• Carry the air into the lungs

Locate the Alveoli

• A

• C

• F

• E

What is the structure of the nasal cavity?

• Composed of the bronchi, bronchioles and alveoli.

• Lined with capillaries and cilia to filter debris

• Branch out of the bronchi, large bronchioles secrete mucous and are lined with cilia.

Where is the Nasal passage?

• B

• A

• C

• G

What is the description of the alveoli ?

• tube guarded by the larynx
• smaller branches of the bronchi
• tiny sacs at the end of the bronchioles
• tube which connects the trachea to the lung

Look at the image. Which letter represents the lung?

• B

• A

• D

• C

What is the structure of the Bronchioles?

• Composed of the bronchi, bronchioles and alveoli.

• Branch out of the trachea - hollow tubes surrounded by cartilage rings, lined with cilia and mucus secreting cells.

• Branch out of the bronchi, large bronchioles secrete mucous and are lined with cilia.

Which letter represents the Diaphragm?

• C

• A

• H

• D