2006-10-01 00:32:11 · 5 answers · asked by rainbow 1 in Science & Mathematics ➔ Biology
It is seen that production of RBC is instntaneous and as per requirement as climbing in a higher altitude. The following explains the same. Source given.
The term erythropoiesis (erythro = RBC, and poiesis = to make) is used to describe the process of RBC formation or production.
The production of new RBCs occurs as the need arises. A natural need always exists to produce new RBCs to replace the ones that have gotten old, or have been damaged, and have "died." Old RBCs die every day in our bodies and more new ones are also born every day. The body can also increase production of RBCs in response to special needs. As mentioned previously, new RBCs must be produced when a person enters a high altitude environment. At very high altitudes, where the quantity of oxygen in the air is greatly decreased, insufficient oxygen is transported to the tissues, and red cells are produced so rapidly that their number in the blood is considerably increased. Therefore, it is obvious that it is not the concentration of RBC's that controls the rate of red cell production, but instead, it is the functional ability of the RBCs to transport oxygen to the tissues in response to the tissue demand for oxygen that controls the rate of RBC production. In other words, it's just like the economic concept of "supply and demand." If the supply of oxygen is LESS than what the body demands, the MORE RBCs are produced. If the supply of oxygen is MORE than what the body demands, the FEWER RBCs are produced. This wonderful negative feedback mechanism works fine on Earth. How about in space? The RBC lifetime is about 120 days.
VR
2006-10-01 00:52:03 · answer #1 · answered by sarayu 7 · 0⤊ 0⤋
erythropoiesis: i usually get this just before i start being sick over restaurant tables
2006-10-01 07:40:42 · answer #2 · answered by Icarus 6 · 0⤊ 0⤋
the formation of red blood corpuscles in the red bone marrow is called erythropoesis
it takes abt a few hours
2006-10-01 07:42:28 · answer #3 · answered by Anonymous · 0⤊ 0⤋
back in 30 seconds
2006-10-01 07:40:26 · answer #4 · answered by Anonymous · 0⤊ 0⤋
the creation of red blood cells. how long does it take to create one cell? probably a fraction of a second...i dunno
2006-10-01 07:34:58 · answer #5 · answered by dan 4 · 0⤊ 0⤋