Collagen
Collagen fibers are the strongest and most abundant of all the connective tissue fibers.
This is a black and white x-ray of collagen fibers, the strongest and most abundant of all the connective tissue fibers.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"Fibers of Collagen Type I - TEM."
http://commons.wikimedia.org/wiki/File:Fibers_of_Collagen_Type_I_-_TEM.jpg
Wikimedia
Public domain.
