Where are Red Blood Cells, produced? What is the average life span of a RBC?
1 Answer
Jul 2, 2016
Red blood cells are produced in the bone marrow. Mature RBC's have a life span of approximately 120 days.
Explanation:
Red blood cells are produced in the bone marrow . Stem cells in the bone marrow develop in several steps to mature red blood cells (RBC):
stem cells
It takes about 21 days for a stem cell to develop in the bone marrow into a so called reticulocyte. This cell is released into the blood stream and circulates there for 1 to 2 days before it is developed into a mature RBC (erythrocyte).
Once they are matured, an RBC remains functional in the bloodstream for about 110 to 120 days before it is degraded.