red blood cells development. erythropoiesis. scientific microbiology in sketch style

erythropoiesis blood hematopoiesis vector diagram cells cell red erythrocyte hemoglobin hematology human body anemia flow isolated circulation bloodstream clot oxygen doodle science circulatory biology artery coagulation realistic type healthy hemostasis hypoglycemia line sketch polycythemia health function rbc high corpuscle molecule transport medical poster system microscope hyperglycemia medicine development scientific microbiology style development erythropoiesis style