What are the major hematopoietic sites in the fetus and in the adult?
Fetus Adult
a. Lymph nodes Spleen
b. Liver Bone marrow
c. Liver Spleen
d. Bone marrow Liver
ANS: B
The major site of hematopoiesis in the fetus is in the liver, which retains some minor production until about 2 weeks after birth. In the adult, it is the bone marrow, where production begins in the fifth month of fetal life.
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