what is fascia:

Fascia is strong connective tissue which performs a number of functions, including enveloping and isolating the muscles of the body, providing structural support and protection. It is a product of mesenchyme, a type of connective tissue which develops in embryos before differentiating into numerous other structures in the body. Mesechyme also forms the foundation for bone, cartilage, and important components of the circulatory and lymphatic systems. Fascia is a very important part of the body, and it has three layers, starting with the superficial fascia directly under the skin and ending with subserous fascia, deep inside the body.