Respiratory

When we breathe in...................enters our lungs and passes into the blood.

• oxygen

• carbon dioxide

When we ................... carbon dioxide leaves our body.

• breathe in

• breathe out

Tags

NGSS.MS-LS1-3

What is the main function of the respiratory system?

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

The windpipe is also known as which organ?

• Lung
• Trachea
• Alveoli
• Nose

When the diaphragm contracts and moves down, the lungs are...

• expanding with air
• shrinking - pushing air out

The breathing muscle is called:

• Epiglottis
• Bronchiole
• Diaphragm

Which body structure protects the lungs from outside harm?

• Cartilage
• Tiny Sacs
• The Rib Cage

The Respiratory System is the body's:

• Breathing system
• Food processing system
• Blood transporting system
• System of nerves

To go on living, the body's cells need food, water, chemicals and ...

• Helium
• Oxygen
• Nitrogen
• Carbon Dioxide

What is the purpose of nose hairs?

• Fight disease
• No purpose
• Keep dust/particles out of nose
• Tickle the nose so you sneeze