1. Lungs (a large vital organ)

Located:In your chest, on the right and left of your heart.

2. Diaphragm (Contracts and expands with your lungs)

Located: Below the lunges

3. Alveoli (tiny air sacks that give oxygen to your blood)

Located: Your Lungs

4. Upper Respiratory Tract (nose,nasal cavity,throat,voice box)

5. Lower Respiratory Tract (trachea, bronchi, bronchial tree)

Parts of The System