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Stack #145391

Muscles of anterior antebrachial compartment

QuestionAnswer
Pronator teres: Origin Coronoid process and medial epicondyle of humerus
Pronator teres: Insertion Middle convexity of lateral surface of radius
Pronator teres: Innervation Median nerve
Pronator teres: Main action Pronates and flexes forearm (at elbow)
Flexor carpi radialis: Origin Medial epicondyle of humerus
Flexor carpi radialis: Insertion Base of 2nd metacarpal
Flexor carpi radialis: Innervation Median nerve
Flexor carpi radialis: Main action Flexes and abducts hand (at wrist)
Palmaris longus: Origin Medial epicondyle of humerus
Palmaris longus: Insertion Distal half of flexor retinaculum and apex of palmar aponeurosis
Palmaris longus: Innervation Median nerve
Palmaris longus: Main action Flexes hand (at wrist) and tenses palmar aponeurosis
Flexor carpi ulnaris: Origin Medial epicondyle of humerus, Olecranon and posterior border (via aponeurosis)
Flexor carpi ulnaris: Insertion Pisiform, hook of hamate, 5th metacarpal
Flexor carpi ulnaris: Innervation Ulnar nerve
Flexor carpi ulnaris: Main action Flexes and adducts hand (at wrist)
Flexor digitorum superficialis: Origin Medial epicondyle, superior half of anterior border
Flexor digitorum superficialis: Insertion Shafts of middle phalanges of medial four fingers
Flexor digitorum superficialis: Innervation Median nerve
Flexor digitorum superficialis: Main action Flexes middle phalanges at proximal interphalangeal joints of middle four fingers; flexes proximal phalanges at metacarpophalangeal joints
Flexor digitorum profundus: Origin Proximal 3/4 of medial and anterior surfaces of ulna and interosseous membrane
Flexor digitorum profundus: Insertion Bases of distal phalanges of 4th and 5th fingers, 2nd and 3rd
Flexor digitorum profundus: Innervation Ulnar nerve
Flexor digitorum profundus: Main action Flexes distal phlanges 4 and 5 at distal interphalangeal joints, 2 and 3
Flexor pollicis longus: Origin Anterior surface of radius and adjacent interosseous membrane
Flexor pollicis longus: Insertion Base of distal phalanx of thumb
Flexor pollicis longus: Innervation Median nerve
Flexor pollicis longus: Main action Flexes phalanges of 1st digit
Pronator quadratus: Origin Distal quarter of anterior surface of ulna
Pronator quadratus: Insertion Distal quarter of anterior surface of radius
Pronator quadratus: Innervation Median nerve
Pronator quadratus: Main action Pronates forearm; deep fibers bind radius and ulna
Created by: sora