Wrist and Hand Flashcards
this is often compressed with ulnar deviation (often injured with repetitive movement - hammering)
triangular fibrocartilagenous complex
___ most commonly broken in wrist
scaphoid
__ most frequently dislocated bone in wrist
the lunate
maximum wrist extension occurs when…
fingers are flexed
max wrist flexion occurs when..
fist is open
O/I/N Flexor carpi radialis
O - medial epicondyle of humerus
I - base of 2/3 metacarpal bone
N - median n
Action of flexor carpi radials
- wrist flexion
- wrist radial deviation
O/I/ of the flexor carpi ulnaris
o - HH - medial condyle of humerus
UH - olecranon and posterior border of ulna
I - pisiform bone, hook of hamate bone, 5th metacarpal
nerve/action of flexor carpi ulnaris
N - ulnar
A - flexion/ulnar deviation
palmaris longus O/I
O - medial condyle of humerus
I - distal half of flexor retinaculum and palmar aponeurosis
action/nerve of palmaris longus
N- median
A - flexion of wrist, tightens palmar aponeurosis
extensor Carpi radialis longus O/I/N
O - lateral supracondyler ridge of humerus
I - base of 2nd metacarpal
N - radila nerve
Action of extensor Carpi radialis longus
extension, radial deviation
Extensor Carpi Radialis Brevis O/I/N
o - lateral epicondyle
I - base of 3rd metacarpal
N - radial
Action of Extensor Carpi Radialis Brevis
extension and radial deviation
N/A Extensor Carpi Ulnaris
N - radial
A - ulnar deviation
metacarpal are __ to proximal flanges ___
Male to female
O/I of extensor digitorum
O - lateral condyle of hummus
I - digits 2-5 and base of middle phalanx
Action and Nerve of extensor digitorum
N -Radial N (deep)
A - extend digits 2-5
- wrist extension while fingers are extended
Abductor Pollicis Longus, Extensor Pollicis Longus, extensor Pollicis Brevis all have this in common
extend at CMC joint
Extensor Digiti Minimi, Extensor Pollicis Longus, Extensor Indicis all have this in common
extend MCP and IP joints
A/N of the flexor digitorum superficialis
N - median nerve
A - flex wrist, MCP, PIP
A/N of Flexor Digitorum Profundus
N - median (radial side), Ulnar (ulnar side)
A - flex wrist, MCP, PIP, DIP
A/N of Flexor Pollicis Longus
N - median nerve
A - flexes thumb at CMC, MCP & IP
flex wrist
