This daily doodle captures all, well, most, of the blood cellular components which are all derived from the main haematopoietic stem cells found in bone marrow (top left). Included in this Haematopoietic Family Photos are eosinophils, basophils, neutrophils, red blood cells at different stages of development and a couple of misshapen ones, monocytes, and somewhere hidden in the back are the lymphocytes.

Lectures: Bone Marrow and Hematopoiesis, Histology Lab Hematopoiesis