Week 9 Flashcards
(20 cards)
elbow joint description
synovial
has 2 articulations; humeroulnar and humeroradial
uniaxial; flexion/extension
1 degree of freedom
proximal radioulnar joint description
synovial. within ebow synovial capsule
3 components; head of radius, radial notch of ulna, annular ligament
1 degree freedom
ligaments of elbow joint
annular - encircles and holds radial head in radial notch of ulna
prox ulna collateral - medial epicondyle of humerus to coronoid process and olecranon of ulna
prox radial collateral - lat epicondyle of humerus to annular lig of radius
radial nerve description
C5-T1
reaches lat side of humerus, passes between brachialis and brachioradialis more distally
ant. to lat epicondyle of humerus, it divides into superfiscial (sensory only) and deep branches (also knwon as interosseus nerve). passes through supinator
biceps brachaii
(long head) supraglenoid tubercle of scap, (short head) coracoid process of scap - radial tuberosity
musculocutaneous nerve
coracobrachialis
coracoid process of scap - medial surface of humerus
musculocutanneous nerve
brachialis
ant surface of distal humerus - coronoid process and ulna tuberosity
musculocutaneous nerve and radial nerve
triceps brachii
(long head) infraglenoid tubercle of scap, (lat head) posterior humerus superior to radial groove, (medial head) post humerus inf to radial groove - olecranon process of ulna
radial nerve
anconeus
lat epicondyle of humerus - olecranon process and superior posterior ulna
radial nerve
brachioradialis
procimal 2/3 of lateral supra-epicondylar ridge of humerus - lat distal radius
radial n
extensor carpi radialis longus
lateral supra-epicondylar ridge of humerus - dorsal base of 2nd metacarpal
radial n
extensor carpi radialis brevis
lateral epicondyle humerus - dorsal base 3rd metacarpal
deep branch radial n
extensor digitorum
lateral epicondyle of humerus - extensor expansion of digits 2-5
deep branch radial n
extensor digit minimi
lateral epicondyle humerus - extensor expansion 5th digit
deep branch radial n
extensor carpi ulnaris
lat epicondyle humerus and ulna - dorsal base 5th metacarpal
deep branch radial n.
supinator
lat epicondyle of humerus, radial collateral ligament and annular ligament, crest of ulna - lateral proximal radius
deep branch radial n.
abductor pollicis longus
posterior ulna, radius and IOM - base 1st metacarpal
post interosseous nerve (radial n)
extensor pollicis brevis
post radius and IOM - dorsal base proximal phalanx of 1st digit
post interosseous nerve (radial)
extensor pollicis longus
post ulnar and IOM - dorsal aspect of base of distal phalanx of 1st digit
post interosseous n (radial)
extensor indicis
posterior ulna and IOM - extensor expansion
post interosseous nerve (radial)
