Muscle # on little torso # on arm Origin Insertion Action model Model Flexor carpi 75 13 Medial epicondyle of humerus 2nd & 3rd metacarpals Flexes wrist, assists in pronating, radialis abducting hand Flexor carpi ulnaris 77 15 Medial epicondyle of humerus, Pisiform, hamate, 5th metacarpal Flexes wrist, assist in adducting hand olecranon process of ulna Palmaris longus 76 14 Medial epicondyle of humerus Palmar aponeurosis Flexes wrist UPPER LIMB (Hand Movements- Flexion of Digits) Muscle # on little torso # on # on Origin Insertion Action model big arm torso model model Flexor digitorum 85 (under 74- 20 24 Humerus, ulna, radius Middle phalanges of digits 2-5 Flexes middle and proximal superficialis 76) phalanges of digits 2-5 Flexor pollicis 22 41 Radius, ulna, interosseus Distal phalanx 1 Flexes thumb longus membrane UPPER LIMB (Hand Movements- Extends Wrist and Hand) Muscle # on little torso # on arm Origin Insertion Action model model Extensor carpi 81 19 Humerus 2nd metacarpal Extends wrist, abducts hand radialis longus Extensor carpi 80 18 Humerus 3rd metacarpal Extends wrist, abducts hand radialis brevis Extensor carpi 78 16 Lateral epicondyle of humerus 5th metacarpal Extends wrist ulnaris Extensor digitorum 79 17 Lateral epicondyle of humerus Proximal and middle phalanges of Extension of digits 2-5 digits 2-5
Muscle # on little torso model # on arm Model Origin Insertion Action Flexor carpi radialis 75 13 Medial epicondyle of humerus 2nd & 3rd metacarpals Flexes wrist, assists in pronating, abducting hand Flexor carpi ulnaris 77 15 Medial epicondyle of humerus, olecranon process of ulna Pisiform, hamate, 5th metacarpal Flexes wrist, assist in adducting hand Palmaris longus 76 14 Medial epicondyle of humerus Palmar aponeurosis Flexes wrist UPPER LIMB (Hand Movements- Flexion of Digits) Muscle # on little torso model # on big torso model # on arm model Origin Insertion Action Flexor digitorum superficialis 85 (under 74- 76) 20 24 Humerus, ulna, radius Middle phalanges of digits 2-5 Flexes middle and proximal phalanges of digits 2-5 Flexor pollicis longus 22 41 Radius, ulna, interosseus membrane Distal phalanx 1 Flexes thumb UPPER LIMB (Hand Movements- Extends Wrist and Hand) Muscle # on little torso model # on arm model Origin Insertion Action Extensor carpi radialis longus 81 19 Humerus 2nd metacarpal Extends wrist, abducts hand Extensor carpi radialis brevis 80 18 Humerus 3rd metacarpal Extends wrist, abducts hand Extensor carpi ulnaris 78 16 Lateral epicondyle of humerus 5th metacarpal Extends wrist Extensor digitorum 79 17 Lateral epicondyle of humerus Proximal and middle phalanges of digits 2-5 Extension of digits 2-5
TAHS%20LCCC%20BIO%20163.docx