Intrinsic Muscles of Forearm Flashcards
Extensor Carpi Ulnaris
Lateral condyle of the humerus and posterior ulna to the base of the 5th metacarpal
Extends and adducts hand
Extensor Carpi Radialis Longus
Lateral supracondylar ridge of the humerus to the base of the 2nd metacarpal
Extends and abducts wrist
Extensor Carpi Radialis Brevis
Lateral epicondyle of the humerus to the medial 4 digits
Extends wrist and medial 4 digits
Extensor Digitorum
Lateral epicondyle of the humerus to the styloid process of the radius
Extends wrist and medial 4 digits
Brachioradialis
Lateral supracondylar ridge of the humerus to the styloid process of the radius
Flexes elbow and helps in pronation
Extensor Digiti Minimi
Lateral epicondyle of the humerus to the 5th digit
Extends wrist and 5th digit
Extensor Indicis
Posterior ulna and interosseous membrane to the 2nd digit
Extends wrist and 2nd digit
Extensor Pollicis Longus
Posterior ulna and interosseous membrane to the distal phalanx of the pollex
Extends and abducts wrist and pollex
Extensor Pollicis Brevis
Posterior radius and interosseous membrane to the proximal phalanx of the pollex
Extends wrist and pollex
Abductor Pollicis Brevis
Scaphoid, trapezium and flexor retinaculum to the proximal phalanx of the pollex
Adducts pollex
Adductor Pollicis
Palmar surface of the 3rd metacarpal, capitate and base of 2nd metacarpal to the proximal phalanx of pollex
Opposition and flexion of the pollex
Flexor Pollicis Brevis
Flexor retinaculum, capitate and trapezium to the proximal phalanx of the pollex
Opposition of the pollex
Abductor Digiti Minimi
Pisiform to proximal phalanx of 5th digit
Flexes and abducts 5th digit
Flexor Digiti Minimi
Flexor retinaculum and hamate to the proximal phalanx of the 5th digit
Flexes 5th digit
Opponens Digiti Minimi
Hamate to the 5th metacarpal
Opposes 5th digit
Palmaris Brevis
Palmar aponeurosis to the skin of the hypothenar eminence
Tightens palmar aponeurosis
First Through Fourth Lumbricals
Tendons of flexor digitorum profundus to the medial 4 digits
Flex and extend medial 4 digits
First Through Fourth Dorsal Interossei
By two heads from the metacarpals to the proximal phalanx of the 2nd through 4th digits
Flexes and extends medial 4 digits
First through Third Palmar Interossei
Metacarpals 2, 4 & 5 to the proximal phalanx of those same digits
Flexes and extends digits
Pronator Teres
Medial epicondyle of the humerus and coronoid process to the mid-lateral surface of the radius
Pronates forearm; flexes elbow
Flexor Carpi Radialis
Medial epicondyle of the humerus to the base of the 2nd metacarpal
Flexes and abducts wrist (palmaris longus also flexes elbow)
Palmaris Carpi Radialis
Medial epicondyle of the humerus to the palmar aponeurosis and flexor retinaculum
Flexes and abducts wrist (palmaris longus also flexes elbow)
Flexor Carpi Ulnaris
Medial epicondyle of the humerus and olecranon to the pisiform, hook of hamate and 5th metacarpal
Flexes and adducts wrist
Flexor Digitorum Superficialis
Medial epicondyle of the humerus, proximal ulna and anterior radius to the phalanges of the medial 4 digits
Flexes medial 4 digits
Flexor Digitorum Profundus
Proximal, medial ulna and interosseous membrane to the distal phalanges of the medial 4 digits
Flexes wrist and medial 4 digits
Flexor Pollicis Longus
Anterior surface of the radius to distal phalanx of the pollex
Flexes Pollex
Pronator Quadratus
Distal ulna to distal radius on their anterior surface
Pronates forearm
