Which one of the following is the main graveyard of RBC?
A
Bone marrow
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B
Spleen
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C
Liver
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D
Kidney
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Solution
The correct option is B Spleen The spleen is a secondary lymphoid organ. RBCs have an average life span of 120 days after which they are destroyed in the spleen (graveyard of RBCs). The destruction of RBCs in spleen help in conservation of iron in the body.