Which of the following factors is the primary contributor to the vertebral body's decreased ability to withstand compressive forces as it ages?
a. Loss of horizontal trabeculae
b. Loss of vertical trabeculae
c. Loss of osteophyte formation
d. Loss of cortical bone
ANS: A
The vertical trabeculae help the vertebral body to withstand shear force, and the horizontal
trabeculae are primarily responsible in supporting compressive forces.
Health Professions
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