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. Author manuscript; available in PMC: 2012 Jan 1.
Published in final edited form as: Wiley Interdiscip Rev Nanomed Nanobiotechnol. 2011 Jan-Feb;3(1):47–69. doi: 10.1002/wnan.105

Figure 16.

Figure 16

Crack propagation in the osteonal bone under compression a) Epi-fluorescence image showing four groups of arc-shaped circumferential microcracks (bright green) arranged in the quasiorthogonal pattern; b) Epi-fluorescence image showing the crack propagation across neighboring osteons. The cracking of the central osteon is transfered to the osteons to the lower left and upper right; c) SEM micrograph showing arc-shaped microcracks. d) Closer observations of (c) (asterisks) showing the short micro-radial cracks in the thick lamellae and a circumferential microcrack. The figure is reprinted with permission from reference 202.