Mosab Nouraldein Mohammed Hamad2023-12-122023-12-122018https://ds.eaeu.edu.sd/handle/10.58971/798Platelet is an irregular, disc-shaped element in the blood that assists in blood clotting. During normal blood clotting, the platelets clump together (aggregate). Although platelets are often classed as blood cells, they are actually fragments of large bone marrow cells called megakaryocytes. (6)other