How blood cells divide – image description

This is a diagram that shows the different stages of the blood cell development. It shows how red blood cells, platelets and white blood cells are all produced from blood stem cells.


There are 9 different blood cells in the diagram. At the top of the diagram is a blood stem cell. From the blood stem cell there are two arrows, each pointing to a blood cell on either side. One arrow points downwards to a myeloid stem cell and the other arrow points downwards to a lymphoid stem cell. From the myeloid stem cell there are 3 long arrows pointing to 3 types of mature blood cells at the bottom of the diagram. One arrow points to a red blood cell, one arrow points to some platelets and a third arrow points to a neutrophil. From the lymphoid stem cell a short arrow points to a lymphoid blast cell halfway down the diagram. This cell is where ALL begins. From the lymphoid blast cell another two short arrows point down to the bottom of the diagram. One arrow points to a B-lymphocyte and the other arrow points to a T-lymphocyte. Across the bottom of the diagram a label shows that neutrophils, B-lymphocytes and T-lymphocytes are all types of white blood cell.