arm bones

medial supracondylar ridge

extensor carpi radialis longus muscle

medial epicondyle

pronator teres muscle, flexor muscles

lateral supracondylar ridge

brachioradialis muscle

radial groove

radial nerve

lateral epicondyle

supinator muscle, extensor muscles

crest for the triceps brachii

triceps brachii muscle

(ulna) olecranon

triceps brachii muscle, flexor carpi ulnaris

coronoid process

flexor digitorium superficialis

ulnar tuberosity

biceps brachii muscle

(ulna) anterior surface

flexor digitorium profundus

pronator ridge

pronator quadratus

extensor carpi ulnaris groove

extensor carpi ulnaris muscle

(ulna) posterior surface

extensor pollicis longus, extensor indicis

longitudinal crest

abductor pollicis longus

supinator crest

supinator muscle

interosseous border

extensor pollicis longus, extensor indicis

radial tuberosity

biceps brachii muscle

anterior oblique line

supinator muscle, pronator teres muscle, flexor digitorum superficialis

(radius) anterior surface

flexor pollicis longus

(radius) styloid process

brachioradialis muscle

anterior border

pronator quadratus attachment

suprastyloid crest

pronator quadratus

(radius) posterior surface

abductor pollicis longus, extensor pollicis brevis

pronator tuberosity

pronator teres muscle

interosseous border

abductor pollicis longus, extensor pollicis brevis