Erythropoiesis

Erythropoiesis (from ancient Greek αἷμα - blood and ποίησις - production, formation) is the process of formation of red blood cells in the bone marrow. The formation of red blood cells occurs as a result of the division of precursor cells - erythroid stem cells. The process of erythropoiesis is regulated by hormones such as erythropoietins, which are produced by the kidneys when the oxygen concentration in the blood decreases.

Erythrocytes are red blood cells that perform the function of carrying oxygen from the lungs to the tissues of the body. They contain hemoglobin, which binds to oxygen and carries it within the blood. Red blood cells are disc-shaped and contain two membranes: an outer membrane and an inner membrane.

The process of red blood cell formation begins with the activation of stem cells in the bone marrow, which leads to their division. The cells then differentiate into erythroid progenitor cells, which begin to produce hemoglobin. During the process of maturation, erythroid cells increase in size and become mature red blood cells.

Once the maturation process is complete, red blood cells leave the bone marrow and enter the bloodstream, where they perform their function. When the amount of oxygen in the blood decreases, the kidneys produce hormones that stimulate the production of erythropoietin. This leads to increased production of red blood cells and increased oxygen concentration in the blood.

Erythrocytopoiesis is the process of producing red blood cells in the body called erythrocytes. They perform the function of transporting oxygen and nutrients to the tissues of the body. Red blood cells are produced and stored in the bone marrow, which is part of the lymphatic system.

Erythrocytosis - an increase in the number of red blood cells under normal conditions