Assertion: periosteum's layer | /r/LocatedNear | a layer of spongy bone
Facets:
Source sentences:
text: Flat bones consist of two layers of compact bone surrounding a layer of spongy bone.
text: Flat bones consist of two layers of compact bone surrounding a layer of spongy bone.
text: Flat bones consist of two layers of compact bone surrounding a layer of spongy bone.