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Human Body & Health

Why does long-term immobilization accelerate osteoporosis more in trabecular bone rather than cortical bone?

A)Trabeculae lack osteocyte networks
B)Trabeculae exhibit greater surface area
C)Cortical bone has higher initial density
D)Cortical bone resists piezoelectric stimulation

💡 Explanation

Trabecular bone undergoes more rapid remodeling than cortical bone because it possesses a significantly higher surface area exposed to osteoblast and osteoclast activity. Therefore, disuse-induced bone resorption is more pronounced in trabecular bone, rather than cortical bone which remodels slower due to its lower surface area.

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