IMMUNOLOGY

Detailed explanation-1: -(eh-RITH-roh-site) A type of blood cell that is made in the bone marrow and found in the blood. Erythrocytes contain a protein called hemoglobin, which carries oxygen from the lungs to all parts of the body. Checking the number of erythrocytes in the blood is usually part of a complete blood cell (CBC) test.

Detailed explanation-2: -The term Erythrocytes (from the Gk erythros=red and kytos=cell) is used for RBCs because of their characteristic red colour which also gave blood its colour due to their abundance.

Detailed explanation-3: -A red blood cell (RBC) count measures the number of red blood cells, also known as erythrocytes, in your blood. Red blood cells carry oxygen from your lungs to every cell in your body. Your cells need oxygen to grow, reproduce, and stay healthy.

Detailed explanation-4: -The most abundant formed elements in blood, erythrocytes are red, biconcave disks packed with an oxygen-carrying compound called hemoglobin. The hemoglobin molecule contains four globin proteins bound to a pigment molecule called heme, which contains an ion of iron.