《血液的组成与功能》PPT课件.ppt

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1、第五章血液的组成与功能第一节血液组成及理化特性第三节生理性止血和血液凝固第四节血型和输血第二节血细胞的形态和功能Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.一、血液组成血细胞血液血浆血细胞比容:概念、正

2、常值第一节血液组成及理化特性Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.二、血液的理化特性（一）比重（二）粘滞度Evaluationonly.CreatedwithAspose.Slidesfor.NE

3、T3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.（三）血浆渗透压1.概念：渗透压是指溶液中溶质颗粒透过半透膜的吸水能力。2.影响因素：溶液的渗透压与单位体积溶液中溶质颗粒的数目成正比，而与溶质的种类和颗粒大小无关。Evaluationonly.CreatedwithAspose.Slidesfo

4、r.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.3.血浆渗透压组成及其相对稳定的生理意义组成血浆晶体渗透压血浆胶体渗透压数值（770-3.33）kPa3.33kPa形成物质血浆中晶体物质(主要是电解质Na+、Cl-)血浆蛋白（主要是白蛋白）生理意义维持细胞内外水平衡，维持细胞正常形态。维

5、持血管内外水平衡，维持正常血容量。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.4.等渗溶液等渗溶液：溶液的渗透压=血浆渗透压Evaluationonly.CreatedwithAspose.Slides

6、for.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.（一）红细胞的形态和数量第二节血细胞生理一、红细胞Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011Aspos

7、ePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.(二）红细胞的生理特性1.红细胞膜的选择通透性2.可塑变形性Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfo

8、r.NET3.5ClientProfile5.2.0.0.Copy