Chapter3 BLOOD 1.Components and properties of blood 2.Plasma 3.Physiology of blood cells 4.Hemostasis and Blood coagulation 5.Blood Group
Chapter3 BLOOD 1.Components and properties of blood 3. Physiology of blood cells 4.Hemostasis and Blood coagulation 2.Plasma 5. Blood Group
Components of blood Plasma(血浆) e Blood cells: Red blood cells 100% White blood cells 4 Platelets(血小板) voimne
Components of blood Plasma(血浆): Blood cells: Red blood cells White blood cells Platelets (血小板)
Hematocrit(血细胞比容) The volume of red blood cells as a 然 阳 percentage of centrifuged whole blood volume (PCV) 103 Man: 40-50% Woman: 37-48% baby:55% 案 严重腹泻或大面积烧伤时→血浆量↓→红细胞比容 贫血→红细胞↓→红细胞比容
(PCV) Man： 40-50% Woman： 37-48% baby：55% 临 床 严重腹泻或大面积烧伤时→血浆量↓→红细胞比容↑ 贫血→红细胞↓→红细胞比容↓ The volume of red blood cells as a percentage of centrifuged whole blood. Hematocrit(血细胞比容)
Serum After the clot forms,it retracts, extruding fluid Serum The difference between plasma and serum: Clot retracts absence of fibrinogen and clotting from sides factors in serum
The difference between plasma and serum： absence of fibrinogen and clotting factors in serum Serum After the clot forms, it retracts, extruding fluid
Physical &Chemical properties of blood (1)Specific gravity(比重)： depending on hematocrit and protein composition. Vhole:1.05~1.06 plasma:1.025~1.035 red blood cells:1.090 (②)Viscosity(血液的粘滞性) 液体流动时，由于液体分子间相互碰撞磨擦而产 生阻力，以致流动缓慢并表现粘着的特性
(2) Viscosity(血液的粘滞性) 液体流动时，由于液体分子间相互碰撞磨擦而产 生阻力，以致流动缓慢并表现粘着的特性。 Physical &Chemical properties of blood (1)Specific gravity(比重): depending on hematocrit and protein composition. Whole: 1.05~1.06 plasma: 1.025~1.035 red blood cells: 1.090