| A | B |
|---|
| breathing | the process where fresh air is moved into and stale air is moved out of the lungs |
| respiration | the chemical reaction that releases energy from glucose |
| nasal cavity | where air gets moistened and warmed and filtered |
| pharynx | a tubelike passageway for both food and air |
| larynx | airway to which your vocal cords are attached |
| trachea | a tube about 12 cm in length that brings air to your lungs |
| bronchi | two short branches of the trachea that carry air into the lungs |
| bronchioles | the smaller and smaller branches of the bronchi |
| alveoli | clusters of thin walled sacs at the end of the bronchioles where the exchange of oxygen and carbon dioxide takes place |
| diaphram | the muscle beneath the lungs that helps move air in and out of your body |
| heimlich maneuver | a technique used to save a person from choking |
| epiglottis | a flap of tissue at the lower end of the pharynx that closes to prevent food or liquid from enetering your larynx |
| chronic bronchitis | when bronchitis persists for a long period of time. Excess mucus builds up in the tubes of the lungs |
| emphysema | when the alveoli are not able to expand and contract. Thus the alveoli can't push air out of the lungs and less oxygen moves into the blood stream |
| asthma | a disorder in which there may be shortness of breath, wheezing and coughing. The bronchial tubes contract quickly. It is often an allergic reaction |
| passive smoking | breathing in cigarette smoke filled air. |
| urinary system | rids your body of waste, controls blood volume and balances salt and water. |
| nephron | the filtering units of the kidney |
| ureters | tubes that lead from each kidney to the bladder |
| bladder | an elastic muscular organ that holds urine until it leaves the body |
| urethra | the tube that carries the urine from the bladder to the outside of the body |
| hypothalmus | the part of the brain that regulates how much urine your body produces |
| dialysis | a process in which a person has their blood filtered by an artificial kidney machine. |
| excretory system | all the systems of the body that work to release waste. Kidneys, lungs and skin are the main organs. |
