distal muscles (TL) Flashcards
origin extensor carpi radialis
lateral supracondylar crest
insertion extensor carpi radialis
metacarpal tuberosities of MC II and III
action extensor carpi radialis
extend carpus
origin common digital extensor
lateral epicondyle
insertion common digital extensor
extensor processes of the digital phalanx of digits II-V
action common digital extensor
extend the joints of the 4 principal digits (II-V)
origin lateral digital extensor
lateral epicondyle
insertion lateral digital extensor
extensor processes of distal phalanx of digits III-V
action lateral digital extensor
extend the joints digits III-V
origin ulnaris lateralis
lateral epicondyle
insertion ulnaris lateralis
lateral aspect of the proximal end of MC V; accessory carpal bone
action ulnaris lateralis
abduct carpus; flex carpus
origin supinator
lateral epicondyle of the humerus
insertion supinator
cranial aspect of proximal radius
action supinator
supiation
origin pronator teres
medial epicondyle of the humerus
insertion pronator teres
medial border of the radius
action pronator teres
pronation
origin abductor pollicis longus
distal ulna and adjacent interosseus membrane
insertion abductor pollicis longus
proximal end of metacarpal I
action abductor pollicis longus
abduct digit I
origin flexor carpi radialis
medial epicondyle of the humerus
insertion flexor carpi radialis
palmar surface of proximal aspect of MC II-III
action flexor carpi radialis
flex carpus
origin superficial digital flexor
medial epicondyle of the humerus
insertion superficial digital flexor
palmar surface of the proximal aspect of middle phalanges of digits II-V
action superficial digital flexor
flex carpus; flex digits II-V
origin flexor carpi ulnaris
medial epicondyle of the humerus
insertion flexor carpi ulnaris
accessory carpal bone
action flexor carpi ulnaris
flex carpus
origin deep digital flexor
medial epicondyle of the humerus; ulna; radius
insertion deep digital flexor
flexor tubercle (palmar surface of the base) of the distal phalanx of each digit
action deep digital flexor
flex the carpus; flex digits
action pronator quadratus
pronate the antebrachium
head of the deep digital flexor
radial, humeral, and ulnar heads
proximal sesamoid bone
paired, palmar side of the metacarpals proximal phalanges; embedded in tendons of interosseous muscle
dorsal sesamoid bone
unpaired, dorsal side of metacarpal and proximal phalange joint, embedded in common digital extensor
