forearm flexor muscles Flashcards
Pronator teres
O: Humeral head: Medial supracondylar ridge of humerus. Ulnar head: Coronoid process of ulna
I: Lateral surface of radius
N: Median nerve (C6, C7)
F: Elbow joint: Forearm flexion; Proximal radioulnar joint: Forearm pronation
Flexor Carpi radialis
O: Medial epicondyle of humerus
I: Bases of metacarpal bones 2-3
N: Median nerve (C6, C7)
F: Wrist joint: Wrist flexion, Wrist abduction
N:Bases of metacarpal bones 2-3Bases of metacarpal bones 2-3
Iedial epicondyle of humerusedial epicondyle of humerus
Flexor carpi ulnaris
O: Medial epicondyle of humerus, Olecranon and posterior border of ulna
I: Pisiform bone, Hamate bone, Base of metacarpal bone 5
N: Ulnar nerve (C7-T1)
F: Wrist joint: Wrist flexion/ Wrist adduction
Palmaris longus
O: Medial epicondyle of humerus
I: Flexor retinaculum, Palmar aponeurosis
N: Median nerve (C7, C8)
F: Wrist flexion; Tenses palmar aponeurosis
Flexor digitorum superficialis
O: Medial epicondyle of humerus Coronoid process of ulna Radial head: Proximal half/ anterior border of radius
I: Sides of middle phalanges of digits 2-5
N: Median nerve (C8, T1)
F: Metacarpophalangeal and proximal interphalangeal joints 2-5: Finger flexion
Flexor digitorum profundus
O: Proximal half/anterior surface of ulna, Interosseous membrane
I: Palmar surfaces of distal phalanges of digits 2-5
N: Digits 2-3: Median nerve (anterior interosseous nerve); Digits 4-5: Ulnar nerve (C8, T1)
F: Metacarpophalangeal/ interphalangeal joints 2-5: Finger flexion
Flexor pollicis longus
O: Anterior surface of radius and interosseous membrane
I: Palmar surface of distal phalanx of thumb
N: Median nerve (anterior interosseous nerve) (C7, C8)
F: joint 1: Thumb flexion
Pronator quadratus
O: Distal anterior surface of ulna
I: Distal anterior surface of radius
N: Median nerve (anterior interosseous nerve) (C7, C8)
F: Proximal radioulnar joint: Forearm pronation
