Forearm Flashcards
Insertion of pronator teres
Middle of convexity of lateral surface of radius
Origin of pronator teres
Ulnar head: coronoid process
Humeral head: medial epicondyle
Innervated by median nerve C6, C7
Pronator teres
Flexor Carpi Radialis
Action of pronator teres
Pronates and flexes forearm
Origin of flexor Carpi Radialis
Medial epicondyle of humerus
Insertion of flexor Carpi Radialis
Base of 2nd metacarpal
Innervation of flexor Carpi Radialis
Median nerve C6, C7
Action of flexor Carpi Radialis
Flexes and abducts hand at wrist
Origin of palmaris longus
Medial epicondyle of humerus
Insertion of palmaris longus
Distal half of flexor retinaculum
Action of palmaris longus
Flexes hand
Tenses palmar aponeurosis
Origin of flexor Carpi ulnaris
Olecranon
Innervation of flexor Carpi ulnaris
Ulnar nerve C7, C8
Main action of flexor Carpi ulnaris
Flexes and adducts hand
Insertion of flexor Carpi ulnaris
Pisiform
Hook of hamate
5th metacarpal
Origin of flexor digitorum superficialis
Humero-ulnar head: medial epicondyle of humerus and coronoid process of ulna
Radial head: oblique line of radius
Insertion of flexor digitorum superficialis
Shafts of middle phalanges of medial 4 digits
Innervation of flexor digitorum superficialis
Median nerve C7, C8, T1
Actions of flexor digitorum superficialis
Flexes proximal interphalangeal joint of middle 4 digits
Acting more strongly: flexes proximal phalanges at metacarpophalangeal joints
Origin of flexor digitorum profundus
Proximal 3/4 of anterior and medial surfaces of ulna
Interosseous membrane
Insertion of flexor digitorum profundus
Base of distal phalanges of digits 2,3,4,5
Innervation of flexor digitorum profundus
Digits 2&3: median nerve C8, T1
Digits 4&5: ulnar nerve C8, T1
Actions of flexor digitorum profundus
Flexes distal interphalangeal joints of digits 2,3,4,5
Assist in wrist flexion
Origin of flexor pollicis longus
Anterior surface of radius
Adjacent interosseous membran
Insertion of flexor pollicis longus
Base of distal phalanx of thumb
Action of flexor pollicis longus
Flexes phalanges of thumb
Origin of pronator quadratus
Distal quarter of anterior surface of ulna
Insertion of pronator quadratus
Distal quarter of anterior surface of radius
Muscles that attach to lateral epicondyle of humerus
Extensor digitorum Extensor digit minimi Extensor Carpi Radialis brevis Extensor Carpi ulnaris Supinator
Roof of Guyon’s canal
Volar Carpi ligament
Innervation of pronator quadratus
Median nerve C8, T1
Innervation of palmaris longus
Median nerve C7,C8