limbo erythrocytes in bone marrow. the withering away of red blood cells in the spleen. the life of a red blood cell.

anatomical anatomy artery background biology blood body bone cardiovascular care cartilage cavity cell compact diagram diaphysis epiphyseal epiphysis erythrocyte flow genetic health healthy human illustration immune infection line macro marrow medical medicine microbiology microscope microscopic organ periosteum physiology platelets red science scientific skeleton spleen spongy structure system vector vein vessel