Blood is produced in first six months in fetus in?
Ans. is 'a' i.e., LiverErythropoiesis sitesIntrauterine0-10 weeks - Yolk sac10 weeks - 5 months - Liver (major organ) and spleen5 month onward - Bone marrowAfter bihUpto 20 years - Bone marrow of all bones After 20 years - Flat bones of axial skeletal and proximal end of humerus and femur.
Liver
Spleen
Bone marrow
None