Lung-

You have two lungs in your body. Your lungs feel like a sponge. Your lungs have your Alveoli and Bronchial Tubes in it.

Diaphragm-

Your diaphragm works with your lungs and helps you inhale and exhale. Your diaphragm is a dome shape muscle.

Alveoli-

Your alveoli are tiny bags that fill up with air. They pass oxygen to blood cells.

Trachea-

Your trachea is a one inch pipe that brings oxygen into the lungs and carbon monoxide out of your lungs

Chapter 1

Parts of the Respiratory System

Bronchioles -

Bronchioles are small tubes in your lungs that get the oxygen to the alveoli.