red blood cells - ai generated image

red orange nature blood cells red blood cells oxygen hemoglobin transport circulation vital life plasma erythrocytes shape membrane cytoplasm nucleus hematopoiesis bone marrow spleen liver iron nutrients waste carbon dioxide hematocrit anemia hemolysis hemoglobinopathy vessels capillaries arteries veins hematologist medical health biology physiology microscope platelets leukocytes immune system antibodies antigens clotting hemostasis hematology oxygenation bloodstream transfusion donation disorders diseases typing tests hematology laboratory cell indices