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PTS
forearm and hand
| Term | Definition |
|---|---|
| Action of the brachialis | flex the elbow |
| Origin of brachialis | distal half of anterior surface of humerus |
| insertion of brachialis | tuberosity and coronoid process of ulna |
| action of brachioradialis | flex the elbow, assist to pronate and supinate the forearm when movements are resisted |
| origin of brachiradialis | proximal 2/3rd of the lateral supracondylar ridge of humerus |
| insertion of brachioradilais | styloid process of radius |
| Action of extensor carpi radialis longus and brevis | extend and abduct the wrist, assist to flex the elbow |
| origin and insertion of the extensor carpi radialis longus | distal 1/3 of the lateral supracondylor ridge of humerus and inserts base of second metacarpal |
| origin and insertion of extensor carpi radialis brevis | common extensor tendon from lateral epicondyle of humerus and inserts base of 3rd metacarpal |
| Action of anconeus | extend the elbow |
| origin anconeus | lateral epicondyle of humerus |
| insertion of anconeus | olecranon process and posterior, proximal surface of ulna |
| action extensor indicis | extend and adduct the 2nd finger, may assist to extend the wrist |
| origin of extensor indicis | posterior surface of distal shaft of ulna and interosseous membrane |
| insertion of extensor indicis | tendon on the extensor digitorum at the level of 2nd metacarpal |
| Action flexor carpi radialis | flex and abduct the wrist, assist in flex the elbow |
| origin to flexor carpi radialis | common flexor tendon from medial epicondyle of humerus |
| insertion flexor carpi radialis | bases of 2nd and 3rd metacarpals |
| Action palmaris longus | tense the palmar fascia, flex the wrist, may assist flex the elbow |
| origin of palmaris longus | common flexor tendon from medial epicondyle of humerus |
| insertion of palmaris longus | flexor retinaculum and palmar aponeurosis |
| action of flexor carpi ulnaris | flex and adduct the wrist, assist the elbow to flex |
| origin flexor carpi ulnaris | Humeral head : common flexor tendon from medial epicondyle of humerus ulnar head: posterior surface of proximal 2/3 of ulna |
| insertion of flexor carpi ulnaris | pisiform, hook of hamate, and base of 5th metacarpal |
| Action of flexor digitorum superficialis | flex the 2-5th fingers, flex the wrist |
| origin of flexor digitorum superficialis | common flexor tendon from medial epicondyle of humerus, ulnar collateral ligament, coronoid process of ulna, interosseous membrane, and proximal shaft of radius |
| insertion of flexor digitorum superficialis | sides of middle phalange of 2-5 finger |
| Action of flexor digitorum profundus | flex the 2-5 fingers, assist in flex the wrist |
| origin flexor digitorum profundus | anterior and medial surface of proximal three-quarters of ulna |
| insertion of flexor digitorum profundus | bases of distal phalanges, palmer surface of 2-5 fingers |
| action of pronator teres | pronate forearm, and assist to flex the elbow |
| origin of pronator teres | common flexor tendon from medial epicondyle of humerus and coronoid process of the ulna |
| insertion of pronator teres | middle of lateral surface of radius |
| action of pronator quadratus | pronate the forearm |
| origin of pronator quadratus | medial, anterior surface of distal ulna |
| insertion of pronator quadratus | lateral, anterior surface of distal radius |
| action of supinator | supinate the forearm |
| origin of supinator | lateral epicondyle of humerus, radial collateral ligament, annualar ligament, supinator crest of ulna |
| insertion of supinator | anterior, lateral surface of proximal 1/3 of radial shaft |
| Action of adductor pollicis longus | abduct, extend the thumb, abduct the wrist |
| origin of adductor pollicis longus | posterior surface of radius and ulna, interoussous membrane |
| insertion of adductor pollicis longus | base of 1st metacarpal |
| Action of extensor pollicus longus and brevis | extend the thumb interphalangeal joint, extend the thumb metacarpophalangeal and abduct the wrist |
| origins of extensor pollicis longus and brevis | longus: posterior surface of ulna and interosseous membrane brevis: posterior surface of radius and interosseous membrane |
| origin of extensor pollicis longus and brevis | longus: base of distal phalanx of thumb brevis: base of proximal phalanx of thumb |
| action flexor pollicis longus | flex interphalangeal and metacarpophalangeal and carpometacarpel |
| origin of flexor pollicis longus | anterior surface of radius and interosseous membrane |
| insertion of flexor pollicis longus | base and distal phalanx of thumb |
| Action of adductor pollicis brevis | abduct the thumb and assist in opposition of thumb |
| origin adductor pollicis brevis | flexor reniticulum, trapezium and scaphoid tubercles |
| insertion of adductor pollicis brevis | base and proximal phalanx of the thumb |
| action of flexor pollicis brevis | flex the thumb, assist in opposition of the thumb |
| origin of flexor pollicis brevis | superficial: flexor retinaculum deep: trapezium, trapezoid, and capitate |
| insertion of flexor pollicis brevis | base of proximal phalanx of thumb |
| action of opponen pollicis | opposition of the thumb at the carpometacarpal joint |
| origin of opponens pollicis | flexor retinaculum and tubercle of trapezium |
| insertion of opponens pollicis | entire length of 1 metacarpal bone, radial surface |
| action of adductor pollicis | adduct the thumb( carpometa, metalcarpophalngeal) , assist to flex the thumb metacapophalangeal |
| insertion of adductor pollicis | base of proximal phalanx of thumb |
| origin of adductor pollicis | capitate, 2 and 3 metacarpals |
| action. of lumbricals of hand | extend the 2nd -5th dingers interphalangeal, flex the 2nd-5th at the metacarpophalangeal joint |
| origin of lumbricals | surface of the flexor digitorum profundus tendon |
| insertion of lumbricals | extensor aponeurosis on dorsal surface of phalanges |
| Action of palmar interossei | adduct the thumb 2nd, 4th, and 5th fingers toward the 3rd finger: assist to flex the thumb 2nd 4th and 5th finger at metacarpophalangeal: assist to extend the thumb 2nd 4th and 5th at interphalangeal |
| origin of palmar interossei | base of 1st, 2nd, 4th, and 5th metacarpals |
| insertion of palmar interossei | base of proximal phalanx of the related finger and the extensor aponeurosis |
| action of dorsal interossei | abduct 2nd, 3rd, and 4th, fingers metacarpophalangeal: assist to flex 2nd, 3rd, and 4th fingers at metacarpophalangeal: assist to extend 2nd, 3rd, and 4th fingers interphalangeal |
| origin of dorsal interossei | adjacent sides of all metacarpals |
| insertion of dorsal interossei | base of proximal phalanx of 2nd, 3rd, 4th, fingers and extensor aponeurosis |
| Action of digiti minimi | abduct the 5th finger and assist the opposition of the 5th finger toward the thumb |
| origin of digiti minimi | pisiform and tendon of flexor carpi ulnaris |
| insertion of digiti minimi | base of proximal phalanx of 5th finger and ulnar surface |
| Action of flexor digiti minimi brevis | flex the 5th finger, assist in opposition of 5th finger toward the thumb |
| origin of flexor digiti minimi brevis | hook of hamate and flexor reniticulum |
| insertion of flexor digiti minimi brevis | base of proximal phalanx of 5th finger, palmar surface |
| action of opponens digiti minimi | opposition of the 5th finger at the carpometacarpal joint |
| origin of opponens digiti minimi | hook of hamate and flexor retinaculum |
| insertion of opponens digiti minimi | shaft of 5th metacarpal, ulnar surface |
Created by:
VICKICROW
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