Muscles: forearm flexors Flashcards
Flexor carpi radialis
O: medial epicondyle of humerusI: base of 2nd metacarpalN: median nerveB: radial arteryA: flex and abduct hand at wrist
Flexor carpi ulnaris
O: humeral head - medial epicondyle of humerus ulnar head - olecranon and posterior border of ulnaI: pisiform bone, hook of hamate, base of 5th metacarpalN: ulnar nerveB: posterior ulnar recurrent arteryA: flexes and adducts hand at wrist
Palmaris longus
O: medal epicondyle of humerusI: distal half of retinaculum and palmar aponeurosisN: median nerveB: posterior ulnar recurrent arteryA: flexes hand at wrist / tenses palmar aponeurosis
Flexor digitorum superficialis
O: humero-ulnar head - medial epicondyle of humerus & coronoid process of ulna; radial head - superior half of anterior radius (anterior oblique line)I: bodies of middle phalanges of medial four digitsN: median nerveB: ulnar and radial arteriesA: flexes middle and proximal phalanges of medial four digits, flexes hand at wrist
Flexor digitorum profundus
O: Medial & anterior surface of proximal 3/4 of ulna and interosseous membraneI: palmar base of distal phalanges of medial four digitsN: medial part: ulnar nerve // lateral part: median nerveB: anterior interosseous artery, muscular branches of ulnar arteryA: flexes distal phalanges of medial four digits, flexes hand at wrist
Flexor pollicis longus
O: anterior surface of radius and interosseous membraneI: palmar base of distal phalanx of thumbN: median nerve (recurrent branch)B: superficial palmar branch of radial arteryA: flexes phalanges of thumb
Supinator muscle
O: lateral epicondyle of humerus, supinator crest of ulnaI: lateral, posterior, and anterior surfaces of proximal 1/3 of radiusN: radial nerve (deep branch)B: radial recurrent artery, posterior interosseous arteriesA: supinates forearm
Pronator teres
O: 2 heads: medial epicondyle of humerus and coronoid process of ulnaI: midway around lateral surface of radiusN: median nerveB: anterior ulnar recurrent arteryA: pronates forearm and assists with elbow flexion
Pronator quadratus
O: Distal 1/4 of anterior ulnaI: Distal 1/4 of anterior radiusN: median nerve (anterior interosseous)B: anterior interosseous arteryA: pronates forearm
