Assertion: dermis's tissue | /r/MadeOf | collagen
Facets:
Source sentences:
text: The dermis is made up of connective tissue that contains protein, collagen, and elastic fibers.
text: deeper region - (reticular dermis) this is a layer of dense irregular connective tissue, which contains collagen and elastin, which give skin its strength and extensibility.
text: The dermis is made up of connective tissue that contains protein, collagen, and elastic fibers.