Combo Unit 4 Test 4-1, 4-2 ,4-3
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Created by:
merkertffms on March 30, 2012
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Description:
Respiration and Excretion
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22 terms
Terms | Definitions |
|---|---|
 excretion | the process of removing wastes from the body |
| urea | chemical that comes from the breakdown of proteins |
| kidney | a major organ of the excretory system that removes urea and other wastes from the blood |
| urine | A watery fluid produced by the kidneys that contains urea and other wastes |
| ureters | The tubes that carry urine from the kidneys to the bladder. |
| urinary bladder | a sacklike muscular organ that stores urine until it is eliminated from the body |
| urethra | a small tube through which urine flows from the body |
| nephron | tiny filtering factories that remove waste from blood and produce urine |
| tar | dark, sticky substance that forms when tobacco burns |
| carbon monoxide | colorless, odorless gas produced when substances-including tobacco-are burned |
| nicotine | a stimulant drug found in tobacco that increases the activities of the nervous system and the heart |
| addiction | physical dependence, intense craving |
| bronchitis | an irritation of the breathing passages in which the small passages become narrower than normal and may be clogged with mucus |
| emphysema | a serious disease that destroys lung tissue and causes breathing difficulties |
| respiration | The process in which oxygen and glucose undergo a complex series of chemical reactions inside cells |
| cilia | Tiny hairlike extensions that can move together in a sweeping motion |
| pharynx | only part of the respiratory system that is shared with another system |
| bronchi | the passages that direct air into the lungs |
| lungs | are the main organs of the respiratory system |
| alveoli | tiny sacs of lung tissue specialized for the movement of gases between air and blood |
| larynx | voice box; passageway for air moving from pharynx to trachea; contains vocal cords |
| vocal cords | Folds of connective tissue that stretch across the opening of the larynx and produce a person's voice. |
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