Erythropoiesis

1757
0

Erythropoiesis is the process by which red blood cells (erythrocytes) are produced. It is stimulated by decreased O2 delivery to the kidneys, which then secrete the hormone erythropoietin. This activates increased erythropoiesis in the hemopoietic tissues. In postnatal birds and mammals (including humans), this usually occurs within the red bone marrow. In the early fetus, erythropoiesis takes place in the mesodermal cells of the yolk sac. By the third or fourth month, erythropoiesis moves to the spleen and liver. After seven months, erythropoiesis occurs in the bone marrow. However, in humans with certain diseases and in some animals, erythropoiesis also occurs outside the bone marrow, within the spleen or liver. This is termed extramedullary erythropoiesis.

by neeha



26-Jul-10, 10:25 am

Please leave a comment on Erythropoiesis

user

osama bin laden..

2-May-11, 6:35 pm
113 Views

Waterfalls

10-Dec-09, 12:00 am
268 Views

Denver

10-Mar-10, 6:33 pm
731 Views

Characters of F..

18-Jun-10, 8:38 am
783 Views

Mathew Hayden

4-Jun-14, 10:53 am
24 Views

Anaconda (film)

26-Jul-10, 11:12 am
12021 Views

Culture_of_Thai..

1-Sep-10, 12:37 pm
285 Views

Elliots Pheasan..

7-May-11, 8:49 am
248 Views

Christy Fernand..

2-Apr-14, 4:18 pm
29 Views

Narrative poetr..

31-Jul-10, 4:52 pm
1959 Views
Top