human bone marrow under the microscope.

400x anatomy biological biology blood body bone bones cells education erythrocytes haematology haematosis health hematopoiesis hematopoietic hematosis histological histology human immune immunology leukocyte leukocytes magnification marrow medicine micrograph micrography microscope microscopic microscopy organ part physiological physiology red sanguification science scientific stained stem study system teaching tissue vessels white