Let me share with you a difference between erythrocytes and lymphocytes.
| Aspect | Erythrocytes | Lymphocytes |
| Known as | Red blood cells | White blood cells |
| Shape | Biconcave disc-shaped | May be round or irregular |
| Nucleus | Lack a nucleus at maturity | Have a large, round nucleus |
| Life Span | Relatively short life span about 120 days in humans | Longer life span as compared to erythrocytes |
| Function | · Oxygen transport and gaseous exchange | · Antibody production · Antigen recognition · Immune system regulation |
| Hemoglobin content | Rich in hemoglobin | Do not contain hemoglobin but may have other proteins involved in immune function |
| Production | · Derived from stem cells in the bone marrow | · Bone marrow · Thymus · Lymph nodes |
| Circulation | Circulate in the bloodstream | Circulate in the bloodstream and lymphatic system |
| Size | Smaller in size than lymphocytes | Larger in size |
| Percentage in blood | Abundant percentage | Smaller percentage |
| Subtypes | · No distinct subtypes | · T cells · B cells · Natural killer (NK) cells |