Tendon sheath explained

Tendon sheath
Latin:	vagina tendinis

A tendon sheath is a layer of synovial membrane around a tendon.^[1] It permits the tendon to stretch and not adhere to the surrounding fascia. It contains a lubricating fluid (synovial fluid) that allows for smooth motions of the tendon during muscle contraction and joint movements.^[2]

It has two layers:

• synovial sheath
• fibrous tendon sheath

Fibroma of the tendon sheath has been described.^{[3] [4]}

Notes and References

1. Web site: Anatomy and Physiology Glossary . . 2001 . McGraw-Hill Applied Biology Resource Center . McGraw-Hill . 2016-02-22.
2. Book: Betts . J. Gordon . Anatomy & physiology . 9.4 Synovial joints . 2013 . OpenStax . Houston, Texas . 978-1-947172-04-3 . 16 April 2023.
3. Ciatti. P.. Fibroma of tendon sheath located within the ankle joint capsule. Journal of Orthopaedics and Traumatology . 10. 3. 147–150. 2009. 19644650. 2744735. 10.1007/s10195-009-0058-2. Mariani.
4. Okada. T.. J.. T.. K.. Fibroma of tendon sheath of the infrapatellar fat pad in the knee. Clinical Imaging. 33. 5. 406–408. 2009. 19712825. 10.1016/j.clinimag.2008.11.029. Shinozaki. Hirato. Yanagawa. Takagishi.