Listen to the sound clip When a tissue is damaged, blood clotting occurs as a complex series of reactions take place to form a blood clot. This clot prevents further blood loss and the entry of harmful microorganisms, which is crucial for survival. Platelets in the blood adhere to collagen fibers in the damaged vessel wall, releasing substances that make nearby platelets sticky. This platelet plug provides immediate protection against blood loss. Subsequently, clotting factors are released, triggering the formation... from Olivia (English United Kingdom) TTS Computer AI Voice: