Lecture 15 Outline of Last Lecture I. Upper Extremity II. Wrist Joint III. Stability IV. Bones of the Wrist and Hand V. Hand Joints VI. Wrist Joint Movement VII. Palmer Aponerousis VIII. Fascia IX. Palmar Arches Outline of Current Lecture I. Muscles II. Flexor Carpi Radialis III. Flexor Carpi Ulnaris IV. Palmaris Longus V. Flexor Digitorum Superficialis VI. Flexor Digitorum Profundus VII. Extensor Carpi Radialis Longus VIII. Extensor Carpi Radialis Brevis IX. Extensor Carpi Ulnaris X. Extensor Digitorum HPER 205 1st Edition These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best !used as a supplement to your own notes, not as a substitute. !Current Lecture K. Muscles 1. 6 muscles move wrist but not fingers and thumb a. 3 wrist flexors - flexor carpis radialis - flexor carpi ulnaris - palmaris longus b. 3 wrist extensors - extensor carpi radialis longus - extensor carpi radialis brevis - extensor carpi ulnaris 2. 9 muscles primary movers of phalanges a. Flexors - flexor digitorum superficialis - flexor digitorum profundus - flexor pollicis longus b. Extensors - Extensor digitorum - Extensor indicis - Extensor digiti minimi - Extensor pollicis longus - ExtensFlexoor pollicis brevis c. Abductor of thumb and wrist - abductor pollicis longus 3. Wrist Radial Deviators (Abductors) a. Flexor carpi radialisb. Extensor carpi radialis longus c. Extensor carpi radialis brevis d. Abductor pollicis longus e. Flexor pollicis longus f. Extensor pollicis longus g. Extensor pollicis brevis 4. Wrist Ulnar Deviators (Adduction) a. Flexor carpi ulnaris b. Extensor carpi ulnaris L. Flexor Carpi Radialis 1. Origin: medial epincondyle of humerus 2. Insertion: base of 2nd and 3rd metacarpals 3. Actions a. wrist flexion b. radial deviation M. Flexor Carpi Ulnaris 1. Origin a. Medial epincondyle of humerus b. Ulna 2. Insertion: carpals 3. Actions a. wrist flexion b. ulnar deviation N. Palmaris Longus 1. Origin: medial epincondyle of humerus 2. Insertion: palmar aponeurosis3. Action: flexion O. Flexor Digitorum Superficialis 1. Origin a. medial epincondyle b. Radius c. Ulna 2. Insertion: four tendons on phalanges 3. Actions: flexes wrist and fingers P. Flexor Digitorum Profundus 1. Origin a. medial epincondyle b. interosseous membrane 2. Insertion: four tendons on phalanges 3. Action: flexes wrist and fingers Q. Extensor Carpi Radialis Longus 1. Origin: lateral epincondyle of humerus 2. Insertion: 2nd metacarpal 3. Actions a. wrist extension b. radial deviation R. Extensor Carpi Radialis Brevis 1. Origin: lateral epincondyle of humerus 2. Insertion: 3rd metacarpal 3. Actions a. wrist extension b. radial deviationS. Extensor Carpi Ulnaris 1. Origin: lateral epincodyle of humerus 2. Insertion: 5th metacarpal 3. Actions a. wrist extension b. ulnar deviation T. Extensor Digitorum 1. Origin: lateral epincondyle 2. Insertion: four fingers 3. Action: extends wrist and
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