Respiratory System

We breathe in carbon dioxide and breathe out oxygen.

• True

• False

Tags

NGSS.MS-LS1-3

NGSS.MS-LS2-3

NUMBER 1:

• Lungs

• Pharynx

• Mouth

• Alveoli

Tags

NGSS.MS-LS1-3

NGSS.MS-LS1-2

NUMBER 2:

• Pharynx

• Bronchi

• Alveoli

• Lungs

NUMBER 3:

• Pharynx

• Trachea

• Bronchi

• Alveoli

When we breathe out, the ____________ leaves our lungs.

• Carbon dioxide

• Oxygen

Tags

NGSS.MS-LS2-3

Which is the main organ in the respiratory system?

• Heart

• Stomach

• Lungs

• Nose

The trachea is a tube that divides into two smaller tubes called _____

• Bronchi

• Nostrils

• Lungs

The air goes down the bronchi

into the ______

• Blood vessels

• Lungs

• Spinal cord

The lungs are two sacks that are protected by our ...

• Bronchi

• Diaphragm

• Ribs

Where the Gas Exchange takes place

• Lungs

• Alveoli

• Bronchi

• Bronchiloes