BASIC SCIENCE: Wound Healing

Blood Coagulation Page 2

Platelets adhere to exposed collagen in the vessel wall and change form. (Click on picture at right to download a Quicktime animation.)

Platelets adhering to vessel wall

Platelet aggregation

The platelets attract other platelets at the platelet plug to form a clump which becomes a thrombus (platelet aggregation.)

A network of fibrins forms around the thrombus and captures erythrocytes and other blood components to seal the wound.

Click on picture to magnify (61K)


As the clot dries it forms a scab which protects the wound site from dehydration and pathogen invasion.

Go to Inflammation (in depth)

Back to Wound Healing: Coagulation, Page 1

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