Fascia is which of the following?

• A. Layer of adipose tissue
• B. Layer of bone
• C. Layer of fibrous tissue that separates muscles from each other and from the skin
• D. Layer of blood vessels

Answer: (C)

Fascia is a fibrous connective tissue that forms sheets wrapping and separating structures in the body. It sits just under the skin as superficial fascia and wraps around individual muscles as deep fascia, creating compartments and keeping muscles from crowding or rubbing against one another. This tissue also provides a conduit for nerves and blood vessels and helps transmit mechanical forces during movement. The other options describe different tissues: adipose tissue is fat and forms a fatty layer under the skin rather than a fibrous wrapping; bone is osseous tissue; blood vessels are specific structures contained within fascia, not the defining layer itself. So the description of a fibrous tissue layer that separates muscles from each other and from the skin best matches fascia.