Assertion: foot's bone | /r/CapableOf | join by a fibrous sheet results
Facets:
value: in a lighter structure
type: OTHER
Source sentences:
text: Having two bones joined by a fibrous sheet results in a lighter structure that one large solid bony mass, provides a large surface area for muscle attachments, and allows a small amount of movement between the two bones – enough for a bit of resilience, without destabilising the weight bearing function.