A<unk>  (also called blood corpuscle) is any cell of any type normally found in blood.  In mammals, these fall into three general categories:
Red<unk> s
White<unk> s
Platelets
Together, these three kinds of<unk> s sum up for a total 45% of blood tissue (55% is plasma).
Blood cell
Cell 
Cancer Cell
Red blood cell
Granulocyte
Stem cell
White blood cells
Oocyte