Muscles of Wrist & Hand Flashcards
Pronator Teres
O: medial epicondyle of humerus
I: radius
A: pronate forearm
Flexor Carpi Radialis
O: medial epicondyle of humerus
I: metacarpals 2-3
A: flex wrist & radial deviation
Flexor Carpi Ulnaris
O: medial epicondyle of humerus
I: pisiform, hamate, metacarpal 5
A: flex wrist & ulnar deviation
Palmaris Longus
O: medial epicondyle of humerus
I: flexor retinaculum & palmar aponeurosis
A: flex wrist
Flexor Digitorum Superficialis
O: medial epicondyle of humerus
I: sides of middle phalanges 2-5
A: flex wrist & digits
Flexor Digitorum Profundus
I: palmar surface distal phalanges 2-5
A: flex wrist & digits
Extensor Carpi Radialis Longus & Brevis
O: lateral epicondyle of humerus
I: metacarpals 2-3
A: extend wrist
Extensor Carpi Ulnaris
O: lateral epicondyle of humerus
I: metacarpal 5
A: extend wrist
Extensor Digitorum
O: lateral epicondyle of humerus
I: extensor expansion digits 2-5
A: extend wrist & digits
Extensor Digiti Minimi
O: lateral epicondyle of humerus
A: extend 5th digit
Extensor Pollicis Longus & Brevis
extend thumb
Abductor Pollicis Longus & Brevis
aBduct thumb
Palmaris Brevis
O: palmar aponeurosis
A: tightens the palmar aponeurosis