flexor retinaculum

flexor ret·​in·​ac·​u·​lum | \ -ˌret-ᵊn-ˈak-yə-ləm How to pronounce flexor retinaculum (audio) \

Medical Definition of flexor retinaculum

1 : a fibrous band of fascia on the medial side of the ankle that extends downward from the medial malleolus of the tibia to the calcaneus and that covers over the bony grooves containing the tendons of the flexor muscles, the posterior tibial artery and vein, and the tibial nerve as they pass into the sole of the foot
2 : a fibrous band of fascia on the palm side of the wrist and base of the hand that forms the roof of the carpal tunnel and covers the tendons of the flexor muscles and the median nerve as they pass into the hand

called also transverse carpal ligament

Learn More about flexor retinaculum

Cite this Entry

“Flexor retinaculum.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/flexor%20retinaculum. Accessed 27 Nov. 2020.

Comments on flexor retinaculum

What made you want to look up flexor retinaculum? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

A Thanksgiving Word Quiz

  • a traditional thanksgiving dinner
  • November comes from a word for which of the following numbers?
Spell It

Can you spell these 10 commonly misspelled words?

Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!