Platelets are small, anucleate blood cells that play an essential role in hemostasis. Their primary task is to recognize vascular injury, become activated, and aggregate via their surface receptor ...

Intravital microscopy image from the liver of a mouse model: a platelet (turquoise) adheres to the inflamed vessel wall (yellow dashed outline) and sheds a long, filamentous membrane extension—a ...

Megakaryocytes, which are derived from hematopoietic stem cell precursors in bone marrow, form and release platelets; these circulate in the blood for 8 to 10 days before they are removed by hepatic ...

A recently described hemorrhagic disorder characterized by defective platelet aggregation induced by collagen and epinephrine appears to be caused, in part, by the same abnormality induced by aspirin ...