retinaculum

(redirected from extensor retinaculum of foot, superior)
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retinaculum

 [ret″ĭ-nak´u-lum]
a structure that retains an organ or tissue in place.
flexor retinaculum of hand a fibrous band forming the carpal tunnel, through which pass the tendons of the flexor muscles of the hand and fingers.
retinaculum morga´gni a ridge formed by the coming together of segments of the ileocecal valve.
retinaculum ten´dinum a tendinous restraining structure, such as an annular ligament.

ret·i·nac·u·lum

, gen.

ret·i·nac·u·li

, pl.

ret·i·nac·u·la

(ret'i-nak'yū-lŭm, -lī, -lă), [TA]
A frenulum, or a retaining band or ligament.
[L. a band, a halter, fr. retineo, to hold back]

retinaculum

(rĕt′n-ăk′yə-ləm)
n. pl. retinacu·la (-lə) Biology
A band or bandlike structure that holds an organ or a part in place.

ret′i·nac′u·lar (-lər) adj.

ret·i·nac·u·lum

, pl. retinacula (ret'i-nak'yū-lŭm, -lă) [TA]
A frenum, or a retaining band or ligament.
[L. a band, a halter, fr. retineo, to hold back]

retinaculum

A fibrous band, strap or ligament that holds another part in place. The flexor retinaculum prevents the flexor tendons from springing away from the front of the wrist when it is bent.

retinaculum

  1. a hook-like structure on the forewings of moths that contacts the bristlelike frenulum on the hindwing, thus linking the two.
  2. the hook-like structure that retains the springing organ (furcula) in Collembola.