extensor retinaculum

noun
extensor ret·​i·​nac·​u·​lum | \ -ˌret-ᵊn-ˈa-kyə-ləm How to pronounce extensor retinaculum (audio) \

Medical Definition of extensor retinaculum

1 : either of two fibrous bands of fascia crossing the front of the ankle:
a : a lower band that is attached laterally to the superior aspect of the calcaneus and passes medially to divide in the shape of a Y and that passes over or both over and under the tendons of the extensor muscles at the ankle

called also inferior extensor retinaculum

b : an upper band passing over and binding down the tendons of the tibialis anterior, extensor hallucis longus, extensor digitorum longus, and peroneus tertius just above the ankle joint

called also superior extensor retinaculum, transverse crural ligament

2 : a fibrous band of fascia crossing the back of the wrist and binding down the tendons of the extensor muscles

Learn More About extensor retinaculum

Dictionary Entries Near extensor retinaculum

extensor pollicis longus

extensor retinaculum

exterior

See More Nearby Entries 

Cite this Entry

“Extensor retinaculum.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/extensor%20retinaculum. Accessed 27 Jan. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

Test Your Vocabulary

Difficult Spelling Words Quiz

  • alphabet pasta spelling help
  • Which is the correct spelling?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

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