What is the primary site of hematopoiesis in the adult human body?

A Bone marrow ✓
B Spleen
C Liver
D Lymph nodes

Explanation

In adults, the bone marrow is the primary site of hematopoiesis, where hematopoietic stem cells differentiate into all blood cell types.

Source

Guyton and Hall Textbook of Medical Physiology
Hematology Hematology: Hematopoiesis Hematology: Hematopoiesis Easy MEDICAL Confidence: high