How do platelets help heal your wounds?

Answer 1

Platelets are irregularly-shaped, colorless forms that are available in blood. Their sticky surface lets them to form clots to stop bleeding.

When bleeding from a wound starts, the platelets accumulate at the wound and try to block the blood stream. The calcium, vitamin K, & a protein called fibrinogen help the platelets to form coagulation.

A clot starts to form when the blood is in contact with air. The platelets sense the existence of air and start to separate. They respond with the fibrinogen to start forming fibrin, which looks like fiber. The fibrin then starts to structure a web-like work that traps the platelets inside it. This cross section of platelets solidifies as it dries, shaping a coagulation, or "scab."

Answer 2

The functions of platelets are related to the clotting of blood. Because of their adhesion and aggregation capabilities platelets can occlude small breaks in blood vessels and prevent the escape of blood. Platelets which have adhered to exposed collagen in damaged vessels release ADP in milliseconds which in turn initiates the synthesis of thromboxane A2, a very potent prostaglandin which causes platelet aggregation and localized vasoconstriction. Fibrinogen, factors V and VIII, calcium ions, platelet phospholipid (PF-3), associated with the platelet membrane are also released. Substances contained within the platelet granules such as thromboglobulin, heparin neutralizing activity (PF-4) mitogens such as platelet derived growth factor, thrombospondin, ADP, serotonin and calcium ions are also released by aggregated platelets.

Source(s):platelet

Answer 3

Platelets actually help in several ways. The main way that platelets are helpful is in assisting in hemostasis, which, essentially, stops the act of bleeding.

Answer 4

by forming into a big glob to block where the blood is coming from

Answer 5

by forming into a big glob to block where the blood is coming from

Answer 6

Platelets gather at the site of an injury and clump together to form a plug, or aggregate, that helps to limit the loss of blood and promote healing.

Answer 7

platelets help stop the bleeding when you get a cut because they help your blood to thicken ,or clot