Forearm & Elbow Structures (OTH 514/515)

Anconeus

Axilliary nerve

musculocutaneous nerve

pronator teres

Supinator

flexor carpi radialis

flexor carpi ulnaris

palmaris longus

flexor digitorum superficialis

extensor carpi radialis longus

pronator quadratus

extensor carpi radialis brevis

profundus flexor digitorum

extensor digitorum

extensor carpi ulnaris

abductor pollicis longus

abductor pollicis brevis

extensor pollicis longus

central band of extensor expansion

lateral bands of extensor expansion

flexor retinaculum

extensor retinaculum

common interosseous artery

anterior interosseous artery

adductor pollicis

1st dorsal interosseous

Brachioradialis

Radius

Ulna

Olecranon fossa of humerus

trochlea

Capitellum

Coronoid fossa of humerus

radial fossa of humerus

trochlear notch of ulna

coronoid process of ulna

olecranon process of ulna

radial notch of ulna

head of ulna

styloid process of ulna

interosseous border of ulna

interosseous membrane

head of radius

styloid process of radius

ulnar notch of radius

radial tuberosity

humeroradial joint

humeroulnar joint

what joint the primary hinge of the elbow?

humeroulnar joint

Ulnar Collateral Ligament (UCL)

Radial Collateral Ligament (RCL)

annular ligament of radius

proximal radioulnar joint

What three muscles flex the elbow?

biceps brachii, brachialis, and brachioradialis

bicipital aponeurosis

what two muscles extend the elbow?

triceps brachii and anconeus

what muscles rotate the forearm?

biceps brachii, supinator, pronator teres, pronator quadratus

flexors of the forearm primarily attach at...

medial epicondyle of humerus

extensors of the forearm primarily attach at...

lateral epicondyle of humerus

neck of radius

ulnar head is...

distal

radial head is...

proximal

cubitus varus

Angulation of the elbow positioning the forearm closer to the body (medial)

cubitus valgus

Angulation of the elbow positioning the forearm farther away from the body(lateral)

Flexors and extensors attach to...

ulna

pronators and supinators attach to...

radius

pulling of the flexor carpi radialis and ulnaris at the same time would create...

Pure wrist flexion

Pulling of either the flexor carpi radialis or ulnaris alone would create...

Ulnar or radial deviation

annular ligament wraps...

Around radius

radial collateral ligament attaches

radius to lateral epicondyle of humerus

ulnar collateral ligament attaches

ulna to medial epicondyle of humerus