www.lesswrong.com/posts/ZB7Hez6bJiZvCAAA2/theories-of-pain
1 correction found
It can be either a liquid or a solid, and when it solidifies it inhibits the range of motion in the area.
Fascia is not a substance that switches between liquid and solid states. It is connective tissue; anatomy sources describe it as collagen-rich fibrous tissue, with a separate lubricating liquid between fascial layers.
Full reasoning
Current anatomy references describe fascia itself as a sheet/sheath of connective tissue, not as something that is sometimes liquid and sometimes solid.
- Cleveland Clinic defines fascia as a "band of thin, fibrous connective tissue" and says it is a "stringy, white substance made mostly of collagen." It further explains that a liquid called hyaluronan is between each layer of fascia and helps it stretch.
- NCBI's StatPearls likewise says fascia is made of "sheets of connective tissue" and that deep fascia has a fibrous consistency and is rich in hyaluronan.
So the article's statement incorrectly treats fascia itself as changing between liquid and solid states. The more accurate description is that fascia is connective tissue, while fluids such as hyaluronan are present between fascial layers.
2 sources
- Cleveland Clinic: Fascia
Fascia is the band of thin, fibrous connective tissue that wraps around and supports every structure in your body... Fascia is a stringy, white substance made mostly of collagen... A liquid called hyaluronan is between each layer.
- NCBI StatPearls: Anatomy, Fascia Layers
Fascia is made up of sheets of connective tissue that is found below the skin... Deep fascia surrounds bones, muscles, nerves, and blood vessels. It commonly has a more fibrous consistency and rich in hyaluronan as compared to the other subtypes.