Blood clotting
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Blood Clotting. The Coagulation Process. What is Blood?. Blood is a fluid that carries nutrients, gases, and wastes through the body. The blood consists of these components: Red blood cells, white blood cells, platelets, and plasma.

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Blood Clotting

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Blood clotting

Blood Clotting

The Coagulation Process


What is blood

What is Blood?

  • Blood is a fluid that carries nutrients, gases, and wastes through the body.

  • The blood consists of these components: Red blood cells, white blood cells, platelets, and plasma.

  • Blood is responsible for transporting oxygen to the whole body.


What is blood clotting

What is Blood Clotting?

  • When you cut your finger, capillaries are perforated and blood begins to seep out.

  • Blood coagulation has to occur in order to stop blood from coming out to prevent more serious injury or death.

  • Being able to form blood clots is vital for survival.


Coagulation process

Coagulation Process

  • When a blood carrying vessel is perforated or torn collagen fibers and other tissues are exposed and the vessel constricts decreasing blood flow to the injury.

  • When these tissues are exposed the enzyme thrombin is released.

  • Thrombin activates the clotting factor in platelets causing them to become sticky.


Coagulation process1

Coagulation Process

  • The platelets begin to stick together at the wound site binding to the exposed fibers.

  • Platelets release several chemicals and change their shape to fit the formation of the plug.

  • Then, a fibrin mesh forms and insures the clot will stay.

  • Finally, the blood clot must dissolve in order to restore normal blood flow to the vessel.


Works cited

Works Cited

  • King, Michael. "Blood Coagulation". UI School Of Medicine. October 3, 2009 <http://themedicalbiochemistrypage.org/blood-coagulation.html>.

  • Moake, Joel. "Introduction: Bleeding and Clotting Disorders". Merks Manuals. October 23, 2009 <http://www.merck.com/mmhe/sec14/ch173/ch173a.html>.


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