This video briefly describes erythrocytes(RBCS). Profound explanation on its life cycle, its deficiency, destruction and treatment. TIMELINE: 0:12 Introduction and definition of erythropoiesis 0:20 development of RBCS 0:40 blood transfusion 1:01 life cycle of erythrocytes(RBCS) 2:28 apoptosis of RBCs 2:45 Anemia, symptoms 3:43 hematocrit ratio, HB levels in genders 4:10 Medication for low erythrocytes count 4:36 Bone marrow transplant