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Question
Relative rates of red blood cell production in the bone marrow of different bones at different ages are shown in the graph.P, Q, and R are likely to be, respectively.
Relative rates of red blood cell production in the bone marrow of different bones at different ages are shown in the graph.P, Q, and R are likely to be, respectively.
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Solution
The correct option is A Vertebra, rib and tibia
The correct answer is A.The tibia and femur cease to be important sites of hematopoiesis by about age 25. The vertebrae, sternum, pelvis and ribs, and cranial bones continue to produce red blood cells throughout life. Up to the age of 20 years, RBCs are produced from red bone marrow of all the bones (long bones and all the flat bones).
The correct answer is A.
The tibia and femur cease to be important sites of hematopoiesis by about age 25. The vertebrae, sternum, pelvis and ribs, and cranial bones continue to produce red blood cells throughout life. Up to the age of 20 years, RBCs are produced from red bone marrow of all the bones (long bones and all the flat bones).
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