KS3 Breathing System

What does inhalation mean?

• Breathing in

• Breathing out

What does exhalation?

• Breathing in

• Breathing out

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

• oxygen

• carbon dioxide

When we breathe out , ................. leaves our body.

• oxygen

• carbon dioxide

Which 2 substances are exchanged in the Respiratory System?

• oxygen and nitrogen
• carbon dioxide and oxygen
• oxygen and glucose
• glucose and carbon dioxide

Tags

NGSS.HS-LS2-3

The place in the lungs where oxygen and carbon dioxide are exchanged 

• Diaphragm
• Alveolus
• Bronchi Tube
• Trachea

Letter D is pointing to which Respiratory organ?

• Alveoli
• Diaphragm
• Lung
• Bronchi

Letter B is pointing to which organ of the Respiratory System?

• Nose
• Trachea
• Lungs
• Diaphragm

When the diaphragm relaxes and moves up and the ribs move down and in, the lungs are...

• expanding with air

• shrinking - pushing air out

When the diaphragm contracts and moves down and the ribs move up and out, the lungs are...

• expanding with air

• shrinking - pushing air out