Phil Tavolacci, MSPT, PT provides a vivid description of the Fascia in his book “What’s In Your Web: stories of fascial freedom”:
From Chapter 3 Appendix Eplosion
Fascia, also commonly known as “connective tissue”, is comprised of three basic components: Elastin, Collagen, and Ground Substance. Elastin, a fibrous substance, allows the fascia to be stretchy, flexible, and expandable. When you think of elastin think “elastic.” Collagen, another fibrous substance, allows the fascia to be supportive, strong, and structural. Collagen gives fascia its fortitude and integrity. Blended in with and in between these fibrous elements is the ground substance. It is the gel or goo so to speak , that gives the fascia great fluidity in its normal state.