What is the Difference Between Red Blood Cell and White Blood Cell?

The main differences between red blood cells (RBCs) and white blood cells (WBCs) are their functions, shapes, sizes, and lifespans. Here are the key distinctions:

1. Function: RBCs carry oxygen throughout the body, while WBCs fight off infections.
2. Shape: RBCs have a bi-concave disc shape, while WBCs have an irregular shape.
3. Size: RBCs vary from 6-8 µm in diameter, while WBCs vary from 12-17 µm in diameter.
4. Lifespan: RBCs have a lifespan of about 120 days, while WBCs have a lifespan of around 12-20 days after which they are destroyed in the lymphatic system.
5. Nucleus: RBCs do not have a nucleus on maturity, while WBCs do.
6. Types: There are various types of WBCs, including neutrophils, B lymphocytes, T lymphocytes, monocytes, basophils, and eosinophils. RBCs, on the other hand, are also called erythrocytes.
7. Production: RBCs are produced in the bone marrow and take around seven days to mature before being released into the bloodstream.

In summary, RBCs and WBCs play crucial roles in the body's circulation and immune system, respectively. RBCs are responsible for transporting oxygen, while WBCs help fight infections and maintain overall health.

Comparative Table: Red Blood Cell vs White Blood Cell

Here is a table comparing the differences between red blood cells (RBC) and white blood cells (WBC):

Red blood cells (RBCs) are also known as erythrocytes and are responsible for transporting oxygen to the body's tissues. They have a bi-concave disc shape and are anucleated. White blood cells (WBCs), also known as leucocytes or leukocytes, play a crucial role in the immune system, identifying and targeting pathogens. They have an irregular shape and contain a nucleus. The different types of white blood cells include neutrophils, B lymphocytes, T lymphocytes, monocytes, basophils, and eosinophils.