Final Exam Review Flashcards
actions of trapezius (4)
depression
scapular elevation
upward rotation
retraction
rhomboid proximal attachment
spinous processes nuchal ligament (same for trapezius)
pectoralis minor proximal attachment
outer surface ribs 3-5
actions of rotator cuff mm (supraspinatus, infraspinatus, teres minor)
lateral rotation of humerus
stabilize GH joint
for supraspinatus only: abduction
brachialis attachment
proximal: distal shaft, lateral and medial intermuscular septa
distal: ulnar tuberosity, coronoid process
brachialis innervation
musculocutaneous AND small branch of radial nerve
biceps brachii distal attachment
radial tuberosity
biceps brachii actions
shoulder flexion
elbow flexion
FOREARM SUPINATION (BECAUSE DISTALLY ATTACHED TO RADIUS)
coracobrachialis action
shoulder flexion
SHOULDER ADDUCTION
posterior arm mm distal attachment
olecranon process of ulna
anconeus attachment
proximal: lateral epicondyle of humerus
distal: olecranon process of ulna
pronator teres attachment
proximal attachment: medial epicondyle, ulnar tuberosity
distal: radius
pronator teres action
forearm pronation
FOREARM FLEXION
flexor carpi radialis distal attachment
base 2nd metacarpal
palmaris longus action
tenses palmar fascia
WRIST FLEXION
common action for superficial AND intermediate layer anterior forearm
wrist flexion
deep layer anterior forearm mm
flexor digitorum profundus
FLEXOR pollicis longus
pronator quadratus
flexor pollicis longus attachment
prox: radius, interosseous membrane
distal: distal phalanx
flexor digitorum profundus proximal attachment
ulna, interosseous membrane
innervation for deep layer of anterior forearm
median nerve – anterior interosseous nerve
FDP: digits 4-5 – ulnar nerve
superficial layer posterior forearm mm (6)
BRACHIORADIALIS extensor carpi radialis longus extensor carpi radialis brevis EXTENSOR DIGITORUM EXTENSOR DIGITI MINIMI extensor carpi ulnaris
extensor carpi radialis longus attachment
lateral supracondylar ridge of humerus to base of 2nd metacarpal
posterior forearm mms that do elbow flexion
extensor carpi radialis longus
brachioradialis
extensor carpi radialis longus/brevis distal attachments
longus = base of 2nd metacarpal brevis = base of 3rd metacarpal
extensor digiti minimi distal attachment
digital expansion 5th digit
extensor carpi ulnaris distal attachment
base of 5th metacarpal
deep layer psoterior forearm mm.
supinator extensor indicis outcrop thumb mm: abductor pollicis longus extensor pollicis brevis extensor pollicis longus
supinator attachment
proximal: supinator crest, radial collat lig, lateral epicondyle
distal: radius
abductor pollicis longus attachment
proximal: radius, ulna, interr. mem
distal: base of 1st metacarpal, trapezium
extensor pollicis brevis attachment
proximal: radius, inter mem.
distal: base of 1st prox phalanx
extensor pollicis longus attachment
proximal: ulna, inter mem
distal: base 1st DISTAL phalanx
palmar/dorsal interossei action
palmar: adduction, FLEXION, EXTENSION
dorsal: abduction, FLEXION, EXTENSION
thenar mm
abductor pollicis brevis
flexor pollicis brevis
opponens pollicis
abductor pollicis brevis attachment
proximal: transverse carpal ligament
distal: trapezium, base 1st prox phalanx
adductor pollicis attachment
proximal
oblique head: capitate, 2nd and 3rd metacarpal
transverse: 3rd metacarpal
adductor pollicis innervation
deep branch ulnar nerve
