sair ing substance. It is both strong and flexible. The strength of bone is prin

Question

sair ing substance. It is both strong and flexible. The strength of bone is principally due to colciurm Teneion orces. For the thigh bone, compression forces are placed on the bone as we tibia beiresist unusual forces such as impact. Imogine a soccer player being kicked in the shin bone (tibia). The Bone i salts wh as the flexibility is the product of the collagenous fibers. Being a cylinder allows a bone to retain its comprsnwthout greatly increasing weight. Being hollow also increases the resistance to tension and needrces are put on the bone by muscle action as we move forward and try to stop or turn. Bones also need to impacted is resisting two forces: compression and tension. you think a bone is weaker under compression or tension forces? Why did you form this conclusion? If you are not sure about the answer to this question think about how a pencil breaks. Does the pencil initially break on the inside edge of the curve (compression) or the outside curve (tension)? If you were kicked in the shin, would the force on the anterior side be exposed to compression or tension forces?

Explanation / Answer

1.Tension forces are two forces acting on one object, moving in opposite directions (away from one another) to stretch the object.

Compression forces are two forces acting on one object, moving in opposite directions (towards one another) to compress or deform the object.

So from this it is quite obvious bones are weaker in tension and stronger in compression.

The pencil will break initially at the outside curve *tension *.

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