Development of red blood corpucles

Areas of the body that produce Red cells

1. Embyonic Life:-

In early few weeks of Embyonic life, the primitive nucleated red blood cells are produced in the yolk sea.

Later on in the middle trimester of gestation red blood cells are produced by liver. Through reasonable no of R.B.C's are produced by the spleen and lymph nodes

2. After birth:-

The bone marrow is the main site of erythrogesis during the early year all bones are filled up with blood forming red marrow but by twentieth year almost all the long bones are replaced with inactive yellow and in this location. R.B.C formation stops only the upper ends of femur and humerus certain red marrow and continue to form red cells throughout the life.

In addition to this the vertebrae, the ribs and flat bones produce R.B.C's continuously.

Posted by: Wasim Javed