<unk> s are the most common type of<unk> <unk>  and the vertebrate body's principal means of delivering oxygen from the lungs or gills to body tissues via the<unk> .<unk> s are also known as<unk> s, haematids or erythrocytes (from Greek erythros for "red" and kytos for "hollow", with cyte nowadays translated as "cell").
A schistocyte is a<unk>  undergoing<unk>  fragmentation, or a fragmented part of a<unk> .
Red blood cell
Granulocyte
Platelet
Lymphocyte
Blood cell
Oocyte
Monocyte
White blood cells