2.62: Understand that Platelets are Involved in Blood Clotting, Which Prevents Blood Loss and the Entry of Micro-organisms

PLATELETS: Cell Fragments Involved in Blood Clotting

PLATELETS AND BLOOD CLOTTING

Role of PLatelets During Blood Clotting

PROCESS: When the Skin is Wounded, Platelets will Arrive to the Wound and Break Open, If Calcium Ions are Present, Thrombin will be Formed Thrombin will Act on Fibrinogen and Turn It into Fibrin, which is a Mass of Insoluble Protein Thread which will Cause a Clot and Red Blood Cells Will be Trapped in It The Clot will Develop into a Scab which will Protect and Allow the Wound to Heal

FUNCTIONS: Clot the Blood so will Prevent Further Blood Loss Clot the Blood so a Insoluble Scab is Formed, Preventing the Entry of Harmful Bacteria that can Infect the Wound or Cause Diseases