What becomes the primary site of hematopoiesis by the end of the 6th month?
Understand the Problem
The question is asking about the primary location where hematopoiesis, or the formation of blood cells, occurs by the end of the sixth month of development. This generally refers to a developmental biology concept related to the human fetus.
Answer
bone marrow
The final answer is bone marrow
Answer for screen readers
The final answer is bone marrow
More Information
By the end of the sixth month of fetal development, hematopoiesis shifts from the liver primarily to the bone marrow, where it continues throughout life.
Tips
A common mistake is to assume the liver remains the primary site of hematopoiesis throughout fetal development. This is only true up to around the sixth month, after which the bone marrow becomes the main site.
Sources
- Extramedullary Hematopoiesis of the Liver and Spleen - PMC - NCBI - ncbi.nlm.nih.gov
- Hematopoiesis | Oncohema Key - oncohemakey.com
- Embryology, Hematopoiesis - StatPearls - NCBI Bookshelf - ncbi.nlm.nih.gov
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