Question

what is the process of hematopoiesis, mainly focusing on lymphocytes. Please give a detailed answer

Answer 1

Haematopoiesis is the process of formation of blood cells from the stem cells in the bone marrow.
The hematopoietic stem cells differentiation into progenitor myeloid cells and progenitor lymphoid cells.
The progenitor myeloid cell further divides into megakaryocyte erythroid progenitor which matured to form erythrocytes and platelets and granulocyte macrophage progenitor which matured into eosinophil, basophil, neutrophil and macrophage.
The progenitor lymphoid cell divides in the presence of IL2 and IL7 into T lymphocytes. In the presence of IL 7,3 and 4 progenitor lymphoid cell into B lymphocytes and in the presence of IL15 to natural killer cells