Platelets are biconvex discs, fragments of cytoplasm 2–3 µm in diameter, found only in the blood of mammals. Platelets form by budding off from megakaryocytes in the bone marrow, and then entering the circulation. They help stop bleeding.On a stained blood smear, platelets appear as dark purple spots, about 20% the diameter of red blood cells. The smear is used to examine platelets for size, shape, qualitative number, and clumping. The main function of platelets is to contribute to hemostasis: the process of stopping bleeding at the site of interrupted endothelium. First, platelets stick to substances outside the interrupted endothelium: adhesion.
Posts about Platelet
  • Necrotizing Enterocolitis & Medical Malpractice

    …, an elevated body temperature, or lethargy. What causes necrotizing enterocolitis? While the exact cause of NEC remains unknown, some experts believe oxygen deprivation during a difficult delivery may be a contributory factor. The lack of oxygen or blood flow to the intestine can cause it to weaken thus making it easier for bacteria that enters…

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