Y8 The Respiratory System

A place to exchange oxygen and carbon dioxide is ....

• bronchus

• alveoli

• lung

• bronchi

When we breathe, we take in ....

• nitrogen

• carbon dioxide

• oxygen

• hydrogen

Voice box; contains the vocal cords.

• larynx

• pharynx

• esophagus

• bronchi

Windpipe; takes air from your mouth to your lungs.

• pharynx

• larynx

• esophagus

• trachea

The branches of the trachea which take air into and

out of the lungs.

• bronchi

• bronchioles

• trachea

• larynx

The muscle beneath the lungs which makes

breathing possible.

• diaphragm

• bronchi

• bronchioles

• alveoli

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide from the body
• to clean the blood
• to break down food and absorb nutrients
• to remove oxygen from the body

What type of cells carry oxygen?

• red blood cells
• white blood cells
• neurons

Which image represents the respiratory system?

• 
• 
• 
• 

Oxygen moves from alveoli to the blood through these tiny blood vessels that line the alveoli walls called_____.

• A. air tubes

• B. bronchioles

• C. capillaries

• D. cilia