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OC-Circulate & Resp.
Circulation & Respiration Vocabulary
| Question | Answer |
|---|---|
| Cardiovascular System | The body system that consists of the heart, blood vessels, and blood; also called the ciruclatory system |
| Heart | A hollow, muscular organ that pumps blood throughout the body |
| Atrium | Each of the two upper chambers of the heart that receives blood that comes into the heart |
| Ventricle | A lower chamber of the heart that pumps blood out to the lungs and body |
| Valve | A flap of tissue in the heart or a vein that prevents blood from flowing backward |
| Artery | A blood vessel that carries blood away from the heart |
| Vein | A blood vessel that carries blood back to the heart |
| Aorta | The largest artery in the body, receives blood from the left ventricle |
| Coronary Artery | An artery that supplies blood to the heart itself |
| Pulse | The alternating expansion and relaxation of an artery wall as blood travels through an artery |
| Blood Pressure | The pressure that is exerted by the blood against the walls of blood vessels |
| Plasma | The liquid part of blood |
| Red Blood Cell | A cell in the blood that takes up oxygen in the lungs and delivers it to cells elsewhere in the body |
| White Blood Cell | A blood cell that fights disease |
| Platelet | A cell fragment that plays an important part in forming blood clots |
| Respiration | The process by which cells break down simple food molecules to release the energy they contain |
| Cilia | The hairlike projections on the outside of cells that move in a wavelike manner |
| Pharynx | The throat; part of both the respiratory and digestive systems |
| Trachea | The windpipe; a passage through which air moves in the respiratory system |
| Bronchi | The passages that direct air into the lungs |
| Lungs | Organs found in air-breathing vertebrates that exchanges oxygen and carbon dioxide with the blood |
| Alveoli | Tiny sacs of lung tissue specialized for the movement of gases between air and blood |
| Diaphragm | A large muscle located at the bottom of a mammal's rib cage that functions in breathing |
| Larynx | The voice box; located in the top part of the trachea, underneath the epiglottis |
| Vocal Cords | Folds of connective tissue that stretch across the opening of the larynx and produce a person's voice |
| Atherosclerosis | A condition in which an artery wall thickins as a result of the buildup of fatty materials |
| Heart Attack | A condition in which blood flow to part of the heart is blocked, causing heart cells to die |
| Hypertension | A disorder in which a person's blood ressure is consistently higher than normal; also called high blood pressure |
| Stroke | Death of brain tissue that can result when a blood vessel in the brain is either blocked by a clot or bursts |
| Emphysema | A serious disease that destroys lung tissue and causes breathing difficulties |
| Bronchitis | An irritation of the breathing passages in which the small passages become narrower than normal and may be clogged with mucus |
| Asthma | A disorder in whihc the repiratory passages narrow significantly |
| Suffocation | Dangerous condition in which insufficient gas exhange in the lungs leads to a lack of oxygen in the vital organs |
| Pneumonia | An infection that causes fluids to accumulate in the alveoli, decreasing the lungs' ability to take in oxygen and remove carbon dioxide |
Created by:
dmain
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