Wrist And Haid Jointa Flashcards
(18 cards)
Carpal bones (Proximal Row)
L->R
Scaphoid
Lunate
Triquetrum
Pisiform
Carpal bones (Distal Row)
Trapezium
Trapezoid
Capitate
Hamate
Flexor carpi radialis
O: medial epicondyle
I: palmar base of 2nd and third metacarpals
A: wrist flexion and radial deviation
N: median nerve
Palmaris Longus
O: medial epicondyle
I: palmar base of 2nd and 3rd metacarpals
A: wrist flexion
N: median nerve
Flexor carpi ulnaris
O: medial epicondyle and posterior proximal ulna
I: pisiform hamate and base of 5th metacarpals
A: wrist flexion
N: ulnar nerve
Extensor carpi ulnaris
O: lateral epicondyle and middle of posterior ulna
I: base of 5th metacarpal
A: wrist extension, ulnar deviation
N: radial nerve
Extensor carpi radialis
O: lateral epicondyle
I: base of 3rd metacarpal
A: wrist extension
N: radial nerve
Extensor carpi radialis longus
O: distal lateral supracondyle and lateral epicondyle
I: base of 2nd metacarpal
A: wrist extension
N: radial nerve
Flexor digitorum superficialis
O: medial epicondyle
I: middle phalanxes of 4 fingers palmar side
A: finger flexion PIP
N: median nerve
Flexor digitorum profundus
O: anterior medial ulna
I: base of distal phalanxes of 4 fingers
A: finger flexion
N: median nerve and ulnar
Flexor pollicis longus
O: ulna, just distal to Coranoid
I: base of distal phalanx of thumb
A: thumb flexion
N: median nerve and palmar interosseous branch
Extensor Digitorum
O: lateral epicondyle
I: middle and distal phalanxes of 4 fingers on dorsal side
A: extension of fingers 2-5 at MCP and PIP
N: radial nerve
Extensor indicis
O: lower middle of posterior ulna
I: middle and distal phalanxes of 2nd finger dorsal side
A: extension of index finger at MCP
N: radial nerve
Extensor Digiti Minimi
O: lateral epicondyle
I: middle and distal phalanxes of 5th finger (pinky) on dorsal side
A: extends pinky at all joints (MCP, DIP,PIP)
N: radial nerve
Extensor Pollicis Longus
O: middle part of lateral ulna on post. Side
I: base distal phalanx of thumb on dorsal surface
A: extension of thumb at CMC, MCP, and PIP joints. Wrist extension
N: radial nerve
Extensor Pollicis Brevis
O: distal middle radius on post. side
I: base of proximal phalanx on dorsal surface
A: extension of thumb at CMC and MCP
N: radial nerve
Abductor Pollicis Longus
O: posterior ulna and radius
I: base of 1st metacarpal dorsal surface
A: abduction and extension of thumb
N: radial nerve
6 muscles that move wrist but not fingers
Flexor carpi radialis
Flexor carpi ulnaris
Palmaris longus
Extensor carpi radialis longus
Extensor carpi radialis brevis
Extensor carpi ulnaris
