Muscles of Forearm Origin & Insertion

Created by xolilmissmeg 

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Pronator Teres

o: medial epicondyle of humerus and coronoid process of ulna i: lateral radius

Pronator Quadratus

o: anterior distal ulna i: anterior distal radius

Flexor Carpi Radialis

o: medial epicondyle of humerus i: radial hand on anterior side (base of metacarpals 2 & 3)

Palmaris Longus

o: medial epicondyle of humerus i: palmar aponeurosis of hand

Flexor Carpi Ulnaris

o: medial epicondyle of humerus and olecranon & posterior border of ulna i: ulnar hand on anterior side (base of metacarpal 5)

Brachioradialis

o: lateral supracondylar ridge of humerus i: styloid process of radius

Flexor Digitorum Superficialis

o: medial epicondyle of humerus & anterior ulna & radius i: four tendons that attach to anterior surfaces of metacarpals 2-5

Flexor Digitorum Profundus

o: medial and anterior ulna i: four tendons that attach to anterior surfaces of metacarpals 2-5

Flexor Pollicis Longus

o: anterior surface of radius & radial half of interosseus membrane i: palmar surface of base of distal phalanx of thumb

Anconeus

o: lateral epicondyle of humerus i: olecranon & proximal posterior ulna

Extensor Carpi Radialis Longus

o: lateral supracondylar ridge of humerus i: radial hand on the posterior side at base of metacarpal 2

Extensor Carpi Radialis Brevis

o: lateral epicondyle of humerus i: radial hand on posterior side at base of metacarpals 2 & 3

Extensor Carpi Ulnaris

o: lateral epicondyle of humerus & posterior border of ulna i: tubercle on base of medial side of metacarpal 5

Extensor Digitorum

o: lateral epicondyle of humerus i: four tendons that insert into phalanges of fingers 2-5

Extensor Digiti Minimi

o: lateral epicondyle of humerus i: dorsal hood of little finger

Supinator

o: lateral epicondyle of humerus & proximal ulna i: lateral surface of radius superior to anterior oblique line

Abductor Pollicis Longus

o: posterior radius & ulna i: lateral side of base of thumb

Extensor Pollicis Brevis

o: posterior radius i: thumb

Extensor Pollicis Longus

o: posterior ulna i: thumb

Extensor Indicis

o: posterior ulna i: extensor hood of index finger

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