At what point during fetal development does the bone marrow become the primary organ of hematopoiesis?
A)3 months' gestation
B)14 days' gestation
C)Birth
D)6 months' gestation

Question

Quizplus · Accepted Answer

Hematopoiesis in humans starts in the yolk sac during the third week of gestation, then migrates to the liver and spleen during the second trimester. However, by the end of the sixth month of gestation, the bone marrow becomes the primary site of hematopoiesis.

At What Point During Fetal Development Does the Bone Marrow