Blood Clots

Vessel Gets Damaged

Platelets Come Into Contact With The Damaged Wall

They Change Shape Forming Projections Enabling Them To Attach To The Wall

They Form A

'Platelet Plug'

Platelets And Damaged Tissue Release A Protein Called THROMBOPLASTIN

This Activates An Enzyme, Turning An PROTEIN Called PROTHROMBIN, Into An ENZYME Called THROMBIN

This Then Catalyses The Conversion Of A SOLUBLE PROTEIN Called FIBRINOGEN Into An INSOLUBLE PROTEIN Called FIBRIN

A 'Mesh' Of FIBRIN Forms And Traps The Red Blood Cells And Platelets

A Blood Clot Is Formed

The Break Is Sealed And Blood Loss Is Prevented