Moving Materials

Front

What are the two narrow tubes that lead to the lungs?

Back

Bronchi

Front

Which system is responsible for gas exchange between the body and the environment?

Back

Respiratory system

Front

What system is made up of the heart, blood, and blood vessels?

Back

Circulatory system

Front

What is the tubelike passageway at the top of the throat that receives air, food, and liquids?

Back

Pharynx

Front

What gas do you breathe out?

Back

Carbon dioxide

Front

What is the main function of the respiratory system?

Back

To facilitate the exchange of oxygen and carbon dioxide.

Front

What muscle helps in the process of breathing by contracting and relaxing?

Back

Diaphragm

Front

What is the primary organ of the respiratory system?

Back

Lungs

Front

What is the process of taking in air called?

Back

Inhalation

Front

What is the process of expelling air from the lungs called?

Back

Exhalation