Respitory System

Front

What changes the space and pressure inside your body to allow you to breathe?

Back

Chest muscles and the diaphragm.

Front

What gas does the human body breathe out?

Back

Carbon dioxide (CO2).

Front

What traps dust, dirt, and other particles to help keep the respiratory system clean?

Back

Cilia and mucus.

Front

What is the tube that leads from the pharynx to the lungs called?

Back

Trachea.

Front

What is the term for breathing out?

Back

Exhale.

Front

What is the main function of the respiratory system?

Back

To exchange oxygen and carbon dioxide.

Front

What is the role of the diaphragm in breathing?

Back

It contracts and relaxes to change the volume of the chest cavity.

Front

What are the tiny air sacs in the lungs where gas exchange occurs called?

Back

Alveoli.

Front

What is the process of taking in air called?

Back

Inhale.

Front

What is the flap of tissue that covers the trachea during swallowing?

Back

Epiglottis.