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Multiple Choice
Where are most blood cells produced in the human body?
A
Bone marrow
B
Lymph nodes
C
Spleen
D
Liver
Verified step by step guidance
1
Understand the function of each organ listed in the options: Bone marrow, lymph nodes, spleen, and liver. Each plays a role in the immune system or blood-related processes.
Recall that blood cells, including red blood cells, white blood cells, and platelets, are primarily produced through a process called hematopoiesis.
Learn that hematopoiesis occurs in the bone marrow, which is a spongy tissue found inside certain bones, such as the femur and pelvis.
Recognize that while the lymph nodes, spleen, and liver are involved in filtering blood, immune responses, and recycling old blood cells, they do not produce most blood cells.
Conclude that the correct answer is 'Bone marrow,' as it is the primary site of blood cell production in the human body.