| A | B |
|---|
| urinary system | made up of organs that rid the blood of wastes and controls blood volume |
kidney,  | an organ that filters blood |
nephron,  | filtering unit of the kidney |
| urine | waste liquid, contains excess water, salts |
ureters,  | tubes that lead from each kidney to the bladder |
| bladder | elastic muscular organ that holds urine |
| urethra | a tube that carries urine from the bladder to the outside of the body |
| pharnyx | tube-like passageway for both food and air |
| larynx | voice-box, vocal cords attached |
bronchi,  | 2 branches that carry air into the lungs |
alveoli,  | tiny, thin-walled sacs surrounded by capillaries |
| diaphragm | muscle beneath the lungs that helps move air in and out |
| chronic bronchitis | disease in which bronchial tubes are irritated, results in too much mucus |
| emphysema | a disease in which the alveoli lose their ability to expand and contract |
| asthma | disorder of the lungs which results in shortness of breath |
| trachea | 12 cm tube lined with cartilage. |
