Following a hysterectomy, which hormonal consequence most directly disrupts bone remodeling in a 55-year-old woman?

💡 Explanation

Estrogen normally stimulates osteoblast activity, which is vital for bone formation and remodeling. After a hysterectomy, estrogen levels decline dramatically, because the ovaries are the primary estrogen source; therefore, decreased osteoblast stimulation leads to reduced bone density and increased fracture risk, rather than the other hormonal imbalances.

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