 | Term | Definition |
| |
plasma |
Liquid portion of the blood. Straw colored. |
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components of plasma |
Water, blood proteins, plasma proteins, nutrients, electrolytes, hormones, vitamins, enzymes, metabolic waste products. |
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plasma proteins |
fibronogen, albumin, prothrombin. |
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fibronogen |
Necessary for blood clotting, synthesized in the liver. |
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albumin |
From the liver, helps maintain blood's osmotic pressure and volume. |
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prothrombin |
A globulin that helps blood coagulate. Vitamin K is necessary for its synthesis. |
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erythrocytes |
Red blood cells. Shape= biconcave discs. |
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hemoglobin |
Gives red color; heme= iron, globin= protein. Function is to transport oxygen to tissues and CO2 away from cells. Normal= 14-18 g in men and 12-16 g in women. |
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function of hemoglobin |
Red cells travel through the lungs where oxygen is carried to tissues and released CO2 is picked up and carried back to the lungs for exchange. |
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arterial blood |
Lots of oxygen= bright red. |
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venous blood |
Lots of CO2= dark crimson. |
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erythropoiesis |
Manufacture of red blood cells. Occurs in bone marrow. Red cells live 120 days. Old cells are broken down by the spleen and liver. |
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hemolysis |
Rupture or bursting of erythrocute. Can be from a blood transfusion or disease. |
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leukocytes |
White blood cells. |
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leukocyte facts |
Larger than erythrocytes. Five types. Normal count= 3200-9800. Manufactured both in bone marrow and lymphatic tissue. Translucent, ameboid in shape. MAIN FUNCTION IS TO FIGHT INFECTION! |
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types of white cells |
Neutrophils, eosinophils, basophils, lymphocytes, and monocytes. |
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granular white cells |
Neutrophils, eosinophils, and basophils. Fight infection. |
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agranular white cells |
Lymphocytes and monocytes. Responsible for immunity. |
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phagocytosis |
Process when white cells surround, engulf, and digest harmful bacteria. |
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diapedesis |
When white cells move through capillary wall into neighboring tissue. |
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heparin |
An anticoagulant produced by basophils. |
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thrombocytes |
Platelets. |
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platelet facts |
Smallest of solid blood components; synthesized in red marrow; not cells: they are fragments of megakaryocytes; necessary for the initiation of the blood clotting process; short life span (5-9 days); primary function is coagulation. |
