The Wrist and Hand Flashcards

1
Q

What action(s) does the extensor carpi radialis longus do

A

wrist extention and radial deviation

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2
Q

What action(s) does the flexor digitorum superficialis do

A

finger flexion (esp. PIP)

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3
Q

Describe the path of the abductor pollucis longus

A

runs over the radial styloid, with more dorsally placed EPB

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4
Q

where does the extensor digiti minimi insert

A

dorsal aponeurosis of 5th finger

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5
Q

Describe how you would find the ulnar artery

A

just medial to piseform

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6
Q

What action(s) does the extensor digitorum do

A

finger extension

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7
Q

Describe how you would find the radial and ulnar styloid processes

A

ulnar styloid is the posterior part of the ulnar at the distal end (medial)

radial styloid is the lateral part of the radius at the distal end (lateral), inside anatomical snuff box

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8
Q

Describe how you would find the lunate

A

just medial to the tubercule of the scaphoid (in swimming pool)

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9
Q

Describe how you would find the surface marking of the radio-carpal joint

A

a line drawn between the styloid processes of the radius and ulanr, being slightly concave distallly and increasinglly curved as it reaches the styloid processes

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10
Q

What action(s) does the flexor carpi radialis do

A

flexion and radial deviation

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11
Q

Describe how you would find the scaphoid

A

on the lateral side of the carpus, just proximal to the distal wrist crease you can feel the tubercule

just medial to the radial styloid

can be pinched between thumb and finger if on the tubercule and in the anatomical snuffbox on the dorsal surface

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12
Q

Describe how you would find the first carpo-metacarpal joint

A

betwen scaphoid and the base of the 1st metacarpal

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13
Q

What action(s) does the flexor carpi ulnaris do

A

wrist flexion and ulnar deviation

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14
Q

Describe how you would find the extensor retinaculum

A

from the radial styloid and distal 2cm of radius running obliquely to ulnar styloid and 2cm beyond the base of 5th metacarpal

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15
Q

What action does abductor policis longus do?

A

thumb abduction

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16
Q

where does extensor carpi ulnaris insert

A

base of 5th MC

17
Q

where does the extensor carpi radialis longus insert

A

base of 2nd MC

18
Q

What action(s) does the extensor digiti minimi do

A

5th finger extension

19
Q

Describe the path of the extensor pollicis longus

A

turns around the dorsal tubercule of the thumb and then crosses ECRL/ECRB to the distal phalanx of the thumb

20
Q

What action(s) does the palmar aponeurosis do

A

wrist flexion

21
Q

where does the extensor indicis insert

A

dorsal aponeurosis index finger

22
Q

Describe how you would find the capitate

A

slide proximally from 3rd MC (in swimming pool)

23
Q

What action(s) does the extensor carpi radialis brevis do

A

wrist extension and radial deviation

24
Q

Describe how you would find the dorsal tubercule of the radius

A

on the posterior aspect of the distal end of the radius, roughly in line with the index finger

25
Q

Describe how you would find the hamate

A

immediately distal and slightly lateral to piseform

need to apply sufficient pressure through the hypothenar eminence

26
Q

Describe how you would find the piseform

A

on medial side of carpus at proximal part of hypothenar eminence- tendon of flexor carpi ulnaris runs proximally from it

27
Q

Describe how you would find the radial artery at the wrist

A

lateral to the flexor carpi radiallis tendon, proximal to the wrist joint

28
Q

What action(s) does the extensor indicis do

A

index finger extension

29
Q

Describe how you would find the trapezium

A

between scaphoid and base of the 1st metacarpal

30
Q

Describe how you would find the triquetral

A

under piseform

31
Q

where does the abductor pollucis longus insert

A

Base 1st MC

32
Q

Describe how you would find the trapezoid

A

between scaphoid and base of 2nd MC

33
Q

where does the extensor carpi radialis brevis insert

A

base 3rd MC

34
Q

What action(s) does the flexor digitorum profundus do

A

flexion of the fingers (esp. DIP)

35
Q

Describe how you would find the flexor retinaculum

A

attaches medially to piseform and the hook of hamate, and laterally to the scaphoid tubercule and to both lips of the groove on trapezium

36
Q

Describe the path of the extensor digitorum

A

under the dorsal aponeurosis which comes under the bases of proximal phalanges and then to the base of distal phalanges of the 2nd-5th MC