Wrist primary structures Flashcards

1
Q

What structures form the anatomic snuffbox?

A

APL
EPL
EPB

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2
Q

This structure is close to the deep surface of the flexor retinaculum. Median nerve passes through

A

carpal tunnel

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3
Q

This is the only major ligament on the dorsal aspect of the wrist

A

dorsal radiocarpal ligament

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4
Q

This retinaculum prevents tendons from bowstringing as the wrist is extended

A

extensor retinaculum

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5
Q

This structure crosses the palmar aspect of the wrist, forming part of the carpal tunnel. Prevents bowstringing of tendons during wrist flexion

A

flexor retinaculum

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6
Q

The flexor retinaculum serves as the attachment point for these muscles

A

thenar

hypothenar

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7
Q

function of the interosseous membrane

A

stabilizer against axial forces applied at the wrist

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8
Q

This ligament limits ulnar deviation and becomes taut when the wrist is in extremes of extension and flexion.

A

radiocarpal ligament

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9
Q

TFCC

A

cartilaginous disc that sits between the ulna, lunate, and triquetrum

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10
Q

Function of TFCC

A
  • provides stability to wrist jt
  • connects radius and ulna together
  • allows force distribution through wrist
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11
Q

Tunnel of Guyon located between

A
  • hook of hamate
  • pisiform
  • palmar carpal ligament
  • flexor retinaculum
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12
Q

What passes through the tunnel of Guyon?

A
  • ulnar nerve

- ulnar artery

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13
Q

Compression of tunnel of Guyon may result in

A

ulnar tunnel syndrome

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