What is involved in the production of red blood cells?
In humans, red blood cell production occurs almost exclusively in the marrow bone. Stem cells placed in the pulp are generated by blood cells, red and white, and release them into the bloodstream. Red blood cells, also called erythrocytes, do not have a nucleus and are unable to divide as other cells do.
about four to five weeks after pregnancy, the human embryo begins to develop blood. These young embryos do not have bone marrow to form blood, so it is formed by stem cells in the yolk bag. As the internal organs develop, the production of red blood cells moves into the liver. This occurs between nine and 12 weeks. In the middle of the second trimester, this process moves into the bone marrow throughout the life of the person.
children are able to produce blood cells in the pulp of almost all of their bones. As a person ages, some bones stop producing red blood cells. For example, Femur stops producing red blood cells in the mid -1920s.
Hematopoietic stem cells are responsible for the production of red blood cells. These stem cells have the ability to create precursor cells for any type of blood cell. However, once the precursor cell is fully created, it only creates a specific type of blood cell. Stem cells used to create red blood cells exist throughout the life of a person. Although it is possible to kill stem cells by radiation or injury, they are able to replicate and create new blood cells.
red blood cells die after about 120 days. During their lives, the cell membrane deteriorates, which probably damages the cell. They are unable to make repairs, so damaged cells are removed from the body through the liver or spleen. Some of the cell components are recycled, while other components are eliminated as waste products.
with a relatively short lifetime, red cells of cells LOOD must continue daily. Red blood cells in the pulp take about a week. The body usually forIt dies and destroys about 200 000 000 000 red blood cells every day. Production increases if the oxygen level in the blood is too low and decreases if the oxygen level is high. The enzymes released by the kidneys are instructed to increase or reduce the production of red blood cells.