The main function of platelets is to contribute to hemostasis: the process of stopping bleeding at the site of interrupted endothelium. They gather at the site and unless the interruption is physically too large, they plug the hole. First, platelets attach to substances outside the interrupted endothelium: adhesion. Second, they change shape, turn on receptors and secrete chemical messengers: activation. Third, they connect to each other through receptor bridges: aggregation. Formation of this platelet plug (primary hemostasis) is associated with activation of the coagulation cascade with resultant fibrin deposition and linking (secondary hemostasis). These processes may overlap: the spectrum is from a predominantly platelet plug, or "white clot" to a predominantly fibrin clot, or "red clot" or the more typical mixture. The final result is the clot. Some would add the subsequent clot retraction and platelet inhibition as fourth and fifth steps to the completion of the process and still others a sixth step wound repair.
Low platelet concentration is thrombocytopenia and is due to either decreased production or increased destruction. Elevated platelet concentration is thrombocytosis and is either congenital, reactive (to cytokines), or due to unregulated production: one of the myeloproliferative neoplasms or certain other myeloid neoplasms. A disorder of platelet function is a thrombocytopathy.
Normal platelets can respond to an abnormality on the vessel wall rather than to hemorrhage, resulting in inappropriate platelet adhesion/activation and thrombosis: the formation of a clot within an intact vessel. This type of thrombosis arises by mechanisms different than those of a normal clot: namely, extending the fibrin clot of venous thrombosis; extending an unstable or ruptured arterial plaque, causing arterial thrombosis; and microcirculatory thrombosis. An arterial thrombus may partially obstruct blood flow, causing downstream ischemia, or may completely obstruct it, causing downstream tissue death.
PLEASE:-MARK AS BRAINLIST
1. transports oxygen from respiratory organs to various body tissues.
2. it maintains the body temperature
3. digestive food absorbed from the intestine is carried to different part of the body
4. it carries excretory waste produced in the body to kidney for elimination.
5. it carries carbon dioxide from body tissues to respiratory surfaces like lungs, skin ,etc
platelets is to prevent bleeding. Red blood cells are the most numerous blood cell,
blood helps our nerve to work properly
hope this helps u
Hopl it's helpful
The principal function of platelets is to prevent bleeding.
it's is a fluid connective tissue
Platelets are tiny blood cells that help your body form clots to stop bleeding. If one of your blood vessels gets damaged, it sends out signals to the platelets. The platelets then rush to the site of damage. they form a plug (clot) to fix the damage.
Blood is a Connective Tissue
Blood Helps to transport hormones,Oxygen,etc.
blood platelets and lymph are important thing for life .Their is basically related to transportation but with different functions.
function of blood platelets.
1.its function is to react to bleeding from blood vessel injury by clumping, thereby initiating a blood clot.
function of lymph...
1..lymph is to kill the infectious bacteria viruse by transporting white blood cells throughout the body..
hope u got
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