Which of the following lists bone cells in the order of unspecialised stem cell to highly specialised mature bone cell?

Question

BlackTom AI · Accepted Answer

To answer this question, we need to recall the differentiation path of bone-forming cells from less specialized to more specialized.
Option 1: 'Osteoblasts, osteoprogenitor cells, osteocytes' suggests that osteoblasts come before osteoprogenitor cells, which is incorrect because osteoprogenitor cells are the precursor cells that give rise to osteoblasts, not the other way around.
Option 2: 'Osteoprogenitor cells, osteoblasts, osteocytes.' This correctly reflects the sequence: mesenchymal stem cells differentiate into osteoprogenitor cells, which then become osteoblasts, and mature into osteocytes embedded in the bone matrix.
Option 3: 'None of these answers are correct' would only be true if none of the provided sequences matched the true developmental order. Since Option 2 does match, this statement is inaccurate.
Option 4: 'Osteoprogenitor cells, osteoclasts, osteocytes' incorrectly includes osteoclasts, which are bone-resorbing cells derived from different lineages and do not participate in the progressive maturation of osteoblasts into osteocytes.
Option 5: 'Osteoprogenitor cells, osteocytes, osteoblasts' reverses the later stages of the differentiation pathway, placing osteocytes before osteoblasts, which is not the established order.
Overall, the only sequence that aligns with the standard developmental progression from a relatively unspecialized progenitor to a highly specialized mature bone cell is Option 2: osteoprogenitor cells → osteoblasts → osteocytes.

Which of the following lists bone cells in the order of unspecialised stem cell to highly specialised mature bone cell? 单项选择题

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