When describing the biomechanical properties of cancellous and cortical bone, which of the following statements is true?
a. Cancellous bone is stiffer than cortical bone and can withstand less strain before failure.
b. Cortical bone is stiffer than cancellous bone and can withstand less strain before failure.
c. Cancellous bone is stiffer than cortical bone and can withstand more strain before failure.
d. Cortical bone is stiffer than cancellous bone and can withstand more strain before failure.
ANS: B
The stress-strain curves for cortical and cancellous bone are different. The tougher, outer cortical
bone is stiffer than cancellous bone. This means that it can withstand greater stress but less strain
than cancellous bone.
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