The red blood cells are produced in ____.
The red blood cells are produced in ____.
AHeart
BLymph Nodes
CLiver
DBone Marrow
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correct answer is: option d (Bone Marrow)
Explanation: Red blood cells (RBCs), also known as erythrocytes, are produced in the bone marrow through a process called erythropoiesis. The bone marrow contains hematopoietic stem cells that differentiate into various blood cells, including RBCs.
- Option a: The heart is responsible for pumping blood throughout the body and does not produce blood cells.
- Option b: Lymph nodes are part of the lymphatic system and play a role in immune responses, not blood cell production.
- Option c: The liver has several functions, including detoxification and bile production. While the liver plays a role in erythropoiesis during fetal development, the bone marrow becomes the primary site of RBC production after birth.
- Option d: Bone marrow is the spongy tissue found inside bones and is the primary site of hematopoiesis (blood cell formation) in adults. It contains hematopoietic stem cells that differentiate into red blood cells, white blood cells, and platelets.
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