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Contact: Lynn Yarris
DOE/Lawrence Berkeley National Laboratory

Vitamin D Deficiency and Bones

Caption: These 3-D reconstructions of crack paths show in the normal bone (left) pronounced crack deflection by splitting along the interfaces of the osteons accompanied by the formation of crack bridges. In vitamin D-deficient sample, the crack takes a tortuous breaking path across the osteons with no crack bridging.

Credit: Courtesy of Ritchie and Bale, Berkeley Lab

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