Section 3- Wrist/Hand Anatomy Flashcards
Extensor Pollicis Brevis
Posterior arm into proximal phalanx of thumb
Action: extend thumb
Flexor Pollicis Longus
Anterior surface of radius down into distal phalange of thumb
Action: thumb flexor
Extensor Pollicis Longus
Posterior aspect of ulna into distal phalanx of thumb
Action: extend thumb
Abductor Pollicis Longus
Posterior surface of ulna(part radius) into 1st metacarpal of thumbn
Action: abduct thumb
Extensor Digitorum (Communis)
Lateral epicondyle into distal phalanges (4)
Action: extends fingers at interphalangeal joints
Extensor Digitorum Minimi
Lateral epicondyle down into the pinky
Action: extends pinky
Flexor Digitorum Profundus
Upper 3/4 of ulna into distal phalanx of fingers
Action: flexor of wrist
flex metacarpalphalangeal joints
flex all fingers
Flexor Digitorum Superficialis
Medial epicondyle into 2nd (mid) phalanges
Action: flexion of interphalangeal joints
Extensor Carpi Ulnaris
Lateral epicondyle into base of 5th metacarpal
Action: ulnar deviate
extends wrists
Extensor Carpi Radialis Brevis
Lateral epicondyle into base of 3rd metacarpal
Action: extensor of wrist
radial deviate
Extensor Carpi Radialis Longus
Supracondylar ridge (above medial epicondyle) into 2nd metacarpal
Action: radial deviates
Flexor Carpi Ulnaris
Medial epicondyle into 5th metacarpal
Action: flexion of wrist
ulnar deviates
Flexor Carpi Radialis
Medial epicondyle into 2nd/3rd metacarpal
Action: flex wrist
radial deviates
Palmaris Longus
Medial epicondyle into web of hand (palmar apnoreuosis)
Action: flex wrist
cup hand
