Respiratory System Sample Presentation ORGANS The main organs that make up the respiratory system are: • Mouth • Nose • Lungs • Trachea • Bronchi • Diaphragm Respiratory System • The respiratory system supplies oxygen to the blood, and in turn to every cell in the body. Respiratory System • Air pressure causes our body to breath in and out, bringing oxygenated air into the lungs. • Air follows the pathway below: – – – – – Mouth/nose Larynx Trachea Bronchi Lungs Respiratory System • Within the lungs, the bronchi branch into smaller bronchi and even smaller tubes called bronchioles. • Once inside the lungs, oxygen is extracted from the air and passes to the blood stream, where it enters the cardiovascular system. Fun Facts • The breathing rate in women and children is faster than in men. • When you yawn more oxygen goes into your lungs. • Breathing is an involuntary action, controlled by air pressure and the diaphragm. Fun Facts • Our lungs can hold up to 6 liters of air. • The right lung is slightly larger than the left. Does anyone know why? • A person at rest usually breathes between 12 and 15 times a minute Respiratory System Video • http://www.wisconline.com/objects/ViewObject.aspx?ID=A P15104.