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Sirculatory System
Biology Terms
| Question | Answer |
|---|---|
| Circulatory System | Group of organs including the heart and blood vessels that transports blood to all the body cells |
| Heart | Hollow muscular organ that contracts at regular intervals, forcing blood though the circulatory system |
| Atrium | Chamber of the heart that receives incoming blood |
| Ventricle | Muscular chamber that pumps blood out of the heart |
| Vena Cava | Large blood vessel that brings blood from all parts of the body except the lungs to the heart |
| Artery | Tough, flexible blood vessel that carries blood away from the heart to the tissues |
| Aorta | Large artery in mammals that carries oxygen-rich blood from the left ventricle of the heart to all parts of the body except the lungs |
| Capillary | Small thin-walled blood vessels that allow materials diffuse between the blood ans the tissues |
| Blood pressure | measure all the force that blood exerts against a vessel wall |
| Blood | Fluid medium of the circulatory system |
| Plasma | liquid portion of the blood that contains water, dissolved fats, salts, sugars, and proteins |
| Red blood cell | Red blood cell, also known as an erithrorcyte produce in bone marrow and filled with hemoglobin to transport oxygen; in humans, erithrocytes lack a nucleus |
| White blood cells | Blood cell, produced in bone marrow that protects the body against invasion by foreing cells or substances |