properties of plateletes includes and except
Answers
Answer:
Platelets have no cell nucleus; they are fragments of cytoplasm that are derived from the megakaryocytes of the bone marrow, which then enter the circulation. Circulating unactivated platelets are biconvex discoid (lens-shaped) structures, 2–3 µm in greatest diameter.
Answer:
Platelets, also called thrombocytes are a component of blood whose function (along with the coagulation factors) is to react to bleeding from blood vessel injury by clumping, thereby initiating a blood clot. Platelets have no cell nucleus; they are fragments of cytoplasm that are derived from the megakaryocytes of the bone marrow, which then enter the circulation. Circulating unactivated platelets are biconvex discoid (lens-shaped) structures,:117–18 2–3 µM in greatest diameter.Activated platelets have cell membrane projections covering their surface. Platelets are found only in mammals, whereas in other vertebrates (e.g. birds, amphibians), thrombocytes as intact mononuclear cells.