What Do Red Blood Cells Do?

Red blood cells, also known as erythrocytes, are the most abundant cells in the blood. They are responsible for transporting oxygen from the lungs throughout the body and eliminating carbon dioxide. Red blood cells also play an important role in regulating blood pH levels. Without them, the body could not survive. In this article, we’ll look at the important functions of red blood cells and how they work.

Role of Red Blood Cells

The main function of red blood cells is to transport oxygen and carbon dioxide around the body. This is known as the oxygen-carrying capacity of the cell. Red blood cells contain a protein called hemoglobin, which is comprised of four subunits. It binds oxygen in the lungs and releases it to other organs as needed. It also binds carbon dioxide and carries it to the lungs, where it is expelled when the exhale. Red blood cells also play a role in the body’s immune response. They contain a compound called immunoglobulin, which helps to protect the body from foreign invaders by recognizing and attacking harmful bacteria and viruses.

Formation of Red Blood Cells

Red blood cells are formed in the bone marrow. Bone marrow is a complex network of cells that make up the blood-forming system. It produces millions of red blood cells every second, in a process known as erythropoiesis. Red blood cells are constantly being replaced in the body. After about 120 days, they break down and are recycled back into the marrow.

Regulating Blood pH

Red blood cells also play an important role in regulating blood pH levels. The pH level is a measure of the amount of acid and base in a solution. In the body, having a balanced pH is vital as it helps to ensure the proper functioning of enzymes and other proteins. Red blood cells contain a compound called carbonic anhydrase, which helps to regulate pH levels. This compound helps to convert carbon dioxide into bicarbonate, which helps to buffer the acidic environment of the body.

Conclusion

Red blood cells are essential for life and play an important role in the body’s oxygen-carrying capacities, immune response, and regulating blood pH levels. Without them, the body would not be able to function correctly. Fortunately, red blood cells are constantly being replaced in the body, allowing us to stay healthy.