| A | B |
|---|
| diaphragm | separate chest cavity from admomen breath in it contract(up), breath out it relaxes(down) |
| nasal - Oral cavity | inside of nose is moist with tiny hairs that catch dirt |
| Larynx | voice box |
| epiglottis | flap of tissue that covers the trachea when you eat or drink |
| trachea | wind pipe |
| bronchi | two main tubes going to each lung |
| lung | main organ of the respiratory system |
| alveoli | tiny sacs located in each lung covered with capillaris - this is where gas exchange takes place |
| hemoglobin | molecule in the blood that carries oxygen |
| lung capacity | average male is 6 liters of air |
| gas exhange | oxygen into the body, carbon dioxide out |
