How blood cells divide - image description

The image shows different types and stages of blood cells. It shows which types of blood cells can develop into other types of blood cells. At the top of the image is a small round mottled shape. This is a stem cell. Two arrows lead from the stem cell to two other similar round shapes. These are a myeloid stem cell and a lymphoid stem cell. An arrow leads from the myeloid stem cell to another similar shape. This is a myeloid blast cell. Three arrows point from the myeloid blast cell. The first arrow leads to a round shape called a red blood cell. The second arrow leads to a cluster of tiny irregular star-shapes called platelets. The third arrow points to a group of four similar rounded shapes. These are a neutrophil and other white blood cells. An arrow leads from the lymphoid stem cell to another similar shape. This is a lymphoid blast cell. Two arrows point from the lymphoid blast cell to two almost identical round shapes. One is a type of white blood cell called a B-lymphocyte. The other is a type of white blood cell called a T-lymphocyte.