Blood Clotting

Blood Clotting - Blood Clotting Phase I Vasoconstriction...

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Blood Clotting  Phase I 
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Vasoconstriction  Close down blood vessels so you don't lose  blood  Release of  serotonin and thromboxane A2  stimulate vasoconstriction 
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Blood Clotting  Phase II 
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Platelet plug formation  Endothelium lining blood vessels is disrupted and  expose wall of blood vessel (collagen is exposed)  Vessel wall is sticky and platelets adhere (stick) to it  Positive feedback loop  As platelets stick, they  release factors (ADP and  thromboxane A2)  that increase stickiness and  lead to secondary aggregation which then forms  the platelet plug  Release of ADP and thromboxane is called  release  reaction  
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Blood Clotting  Phase II - Release Reaction 
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In order to undergo a release reaction, the  production of  prostaglandins  by the platelets  is required 
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Blood Clotting  Phase III 
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Clotting Phase  Clot formation 
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This note was uploaded on 02/11/2010 for the course AHS 132 taught by Professor Klinger during the Spring '09 term at Nassau CC.

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Blood Clotting - Blood Clotting Phase I Vasoconstriction...

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