Translations:AY Honors/Bones, Muscles, and Movement/Answer Key/51/en
From Pathfinder Wiki
Bone is a relatively hard and lightweight composite material, formed mostly of calcium phosphate. It has relatively high compressive strength but poor tensile strength. While bone is essentially brittle, it is somewhat elastic due to its organic components (chiefly collagen). Bone has an internal mesh-like structure, the density of which may vary at different points.
