What is blood?
Blood is an essential body fluid produced in the bone marrow, the spleen, lymph nodes, and thymus gland. It is an essential fluid that makes life possible. Blood is made up of four different cells. Red blood cells (erythrocytes) White blood cells (leukocytes) Platelets (thrombocytes) Plasma. Red blood cells (erythrocytes) RBC is the most abundant type of cell in … Read more