What gives tendons its great tensile strength?

Question

Tendons are made of dense, regular connective tissue and collagen fibers, but do the collagen fibers contribute to its tensile strength?

Answer 1

The collagen fibers are the strength of the tendon. If a muscle is pulled by both ends, which will give way first? It's usually the muscle...Tendons are very strong because of the collagen fibers incased in them.

Answer 2

Truly it is collagen. It is a very strong protein. In fact it is collagen that also gives bone its tensile strength, and bone its flexibility.