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LCE SCIENCE
Ch 3: Circulation Sec 3: Blood and Lymph
| Term | Definition |
|---|---|
| plasma | the liquid part of the blood |
| red blood cells | a cell in the blood that takes up oxygen in the lungs and delivers it to cells elsewhere in the body |
| hemoglobin | an iron-containing protein that binds chemically to oxygen molecules ; makes up most of red blood cells |
| white blood cells | a blood cell that fights disease |
| platelet | a cell fragment that plays an important part in forming blood clots |
| lymphatic system | a network of vein-like vessels that returns the fluid that leaks out of blood vessels to the bloodstream |
| lymph | the fluid that the lymphatic system collects and returns to the bloodstream |
| lymph node | a small knob of tissue in the lymphatic system that filters lymph, trapping bacteria and other microorganisms that cause disease |