血小板聚集功能.ppt

血小板的止血作用及检测
王学锋
上海交通大学医学院
附属瑞金医院
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直径2-4um,
-
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星形,圆形,椭圆形,不规则形
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图19 人血涂片示聚集的血小板和嗜酸性粒细胞
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Scanning election micrograph of normal human blood cells
(E红细胞 G粒细胞 L淋巴细胞 M单核细胞 P血小板)
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血液涂片中的血小板
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The Normal In - Situ Process
FIG 1:
Normal blood vessel
Intima/media with
endothelial cell
basal membrane
smooth muscle cells
collagen fibers
erythrocyte
thrombocyte
lumen
leukocyte
Hemostasis
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FIG 2
Injured blood vessel
Exposure of collagen
Adhesion of platelets mediated by vWF
Activation and de-granulation of platelets
Aggregation of platelets
erythrocyte
non-activatedthrombocyte
lumen
endothelial cell
basal membrane
activated collagen-bound thrombocyte
collagen fibers
smooth muscle cells
Hemostasis
The Normal In - Situ Process
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