The respiratory system is

• the system by which oxygen is taken into the body and an exchange of oxygen and carbon dioxide takes place in the lungs.

• A tube that carries air to and from the lungs. It is also called the windpipe.

• A passageway leading from the back of the mouth and the nasal cavity in the head to the larynx. It is also called the back of the throat.

• A dome-shaped muscle that extends across the body below the lungs that helps our lungs inhale and exhale air.

The trachea is

• a passageway leading from the back of the mouth and the nasal cavity in the head to the larynx. It is also called the back of the throat.

• where gas exchange happens

• a tube that carries air to and from the lungs. It is also called the windpipe.

• Small tubes in your lungs that let air in and out of your lungs.

The diaphragm is

• a passageway leading from the back of the mouth and the nasal cavity in the head to the larynx. It is also called the back of the throat.

• a dome-shaped muscle that extends below the lungs that helps our lungs inhale and exhale air.

• tiny air sacs at the end of the bronchial tubes where gas exchange occurs.

• Small tubes in your lungs that let air in and out of your lungs.

Alveoli are

• a passageway leading from the back of the mouth and the nasal cavity in the head to the larynx. It is also called the back of the throat.

• the system by which oxygen is taken into the body and an exchange of oxygen and carbon dioxide takes place in the lungs.

• Small tubes in your lungs that let air in and out of your lungs.

• Tiny air sacs at the end of the bronchial tubes where gas exchange occurs.

Bronchial tubes are

• Small tubes in your lungs that let air in and out of your lungs.

• Tiny air sacs at the end of the bronchial tubes where gas exchange occurs.

• muscles that extends across the body below the lungs that helps our lungs inhale and exhale air.

• tubes that carries air to and from the lungs. It is also called the windpipe.

Select the 3 functions of the respiratory system are

• to carry blood through the body

• to move air in and out of the body

• to move oxygen from the air to the blood

• to move carbon dioxide from the bloodstream back to the air

• to help our bodies move

Where does gas exchange happen?

• bronchioles

• trachea

• alveoli

• nasal cavity

What part is letter C pointing to in the picture?

• trachea (windpipe)

• diaphragm

• bronchus

What is letter F pointing to?

• diaphragm

• alveoli

• pharynx

What is letter D pointing to?

• bronchioles

• lung

• larynx