Unit 2: Lecture Flashcards
Superficial layer of flexors
Pronator teres, flexor carpi radialis, flexor carpi ulnaris, palmaris, longus; Common origin medial epicondyle
Pronator Teres
I: middle of radius; A: pronate and flexes; N: Median; Art: ulnar and Anterior recurrent ulnar
Flexor Carpi Radialis
I: base of 2nd metacarpal; A: flexes and abducts; N: Median; A: Ulnar
Flexor carpi Ulnaris
I: pisiform, hamate, metacarple 5; A flexes, adduct; N: ulnar; Art: Ulnar
Palmaris longus
I: flexor retinaculum, palmer aponeurosis; A: flex, tense aponeurosis; N: Median; A: ulnar
Intermediate layer of flexors
Flexor Digitorum
Flexor Digitorum
O: medial epicondyle, coronoid process I: 2-5 A: flexes fingers; N: median A: ulnar Does not go to distal end of finger tips!
Deep Layers
Flexor digitorum profundus, Flexor pollicus longus, Pronator quadratus
Flexor digitorum profundus
O: medial ulna, interosseus membrane; I: base of 2-5; N: Ulnar and median; A: ulnar and anterior interosseous
Flexor pollicus longus
O: anterior radius, interosseus membrane A: flex thumb; N: median; A: anterior interosseus
Pronator quadratus
O, I: ulna, radius; N: median; A: anterior interosseous
Brachioradialis
O: Humerus; I: radius A: flexion; N: radial; A: radial recurrent; Does nothing to wrist
Superficial extensors
Extensor carpi radialis longus, extensor carpi radialis brevis, extensor digitorum, extensor digiti minimi, extensor carpi ulnaris
Superficial extensors originate from common tendon except?
Extensor carpi radialis longus
Extensor carpi radialis longus
O: humerus; I: 2nd metacarpal; A: extend and abduct; N: radial; A: Radial
Extensor carpi radialis brevis
O: humerus; I: 3rd metacarpal; A: extend and abduct; N: deep radial; A: radial
Extensor digitrorum
O: humerus humerus; I: digits; A: extends digits and wrist; N: radial; A: radial
Extensor carpi ulnaris
O: Humerus and ulna; I: pinkie; A: extend and adduct; N: radial; A: ulnar
Extensor digiti minimi
O: humerus; I: pinkie; A: extends; N: radial; A: interosseous recurrent
Deep extensors
Supinator, Abductor pollicus longus, extensor pollicus longus, extensor pollicus brevis, extensor indicis
Supinator
O: humerus, ulna, ligaments; I: radius; N: deep radial; A: recurrent interosseous
Abductor pollicus longus
O: ulna, radius, interosseous I: thumb; A: Abducts thumb and extends it at carpometacarpal joint; N: radial; A: posterior interosseus
Extensor pollicus brevis
O: radius; I: base of thumb; A: extends; N: radial; A: posterior interosseus
Extensor pollicus longus
O: ulna, i.m. I: thumb; A: extends; N: radial; A: posterior interosseus
Extensor indicis
O: ulna, i.m. I: 2nd digit; A: extends; N: radial; A: posterior interosseus
