Posted by: Rob Lester | June 13, 2011

“Crumple zones” designed into our bones

Dr. Randy Guliuzza observed:“Sometimes the best response to a destructive force is to flex rather than to offer direct resistance. Automobile makers design ‘crumple zones’ of materials intended to fold up or shear apart so crash forces are absorbed rather than transmitted to occupants. Bones resist fractures in similar fashion. At the smallest level of collagen fibers, not all of the bonds are fixed solid. Some, called sacrificial bonds, are weaker bonds intended to break upon impact. Their exact arrangements in bone absorb and then disperse many forces that could rapidly reach the fracture threshold. But unlike a car’s crumple zone, a bone’s sacrificial bonds can repair themselves after the trauma, making them ready for another strike”(Guliuzza). This prevents a hairline fracture from becoming compound, a much greater injury.  Auto makers have been researching and designing crumple zones for decades. There is always room for improvement with cars. However, there is nothing man can do to improve upon God’s amazing design of the human body. It is the pinnacle of His creation. As the Bible says, we are “fearfully and wonderfully made.”

Guliuzza, Randy 2009. “Made in His Image: Bone, An Engineering Marvel” ICR Acts & Facts. 38 (7): 10.

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