post forearm muscles Flashcards
Brachioradialis- O, I, IN, A
O- prox 2/3 of lat supercondyler ridge, lat IMS
I- lat surface of distal end of radius (sup to styloid)
IN- Radial c5,6,7
A- flexes forearm, pro and supinates
ECRL- O, I, IN, A
O- inf 1/3 supracondyler ridge, Lat IMS
I- base of 2nd metacarpal bone
In- radial C6,7
A- extend + abduct hand
ECRB- O, I, IN, A
O- common extensor tendon (lat epicondyle), lat collateral lig
I- 3rd metacarpal bone base
IN- deep radial C7,8
A- exted + abduct hand
extensor digitorum- O, I, IN, A
O- common extensor tendon, interosseus membrane
I- ext expansion of medial 4 digits
IN- deep radial C7,8
A- extends hand, digits
extensor digiti minimi- O, I, IN, A
O- common extensor tendon, interosseus membrane
I- extensor expiation of 5th digit
IN- deep radial c7,8
A- extends hand and 5th digit
Extensor carpi ulnaris- O, I, IN, A
O- common extensor tendon
I- base of 5th metacarpal
IN- deep radial c7,8,
A- extend and adduct hand
Suppinator- O (hum + ulnar), I, IN, A
O-
hum- lat epicondyle, lat collateral lig
ulnar- supinator crest of ulnar, supinator fossa
I- 1/3 lat prox part of radius
I- deep rad c7,8
A- supinates forarm
Abductor Pollicis longus- O, I, IN, A
O- post shaft of ulna + radius distal to supinator
I- 1st metacarpal base
IN- post interosseus n C7,8
A- Abducts and extends thumb at carpometacarpal j
extensor pollicis Br- O, I, IN, A
O- radius post shaft (distal to abductor)
I- thumb prox phalanx base
IN- post interosseus C7,8
A- extend carpometacapal and metacarpopharengeak j
ext pollicis longus- O, I, IN, A
O- ulna post shaft middle 1/3
I- thumb distal phalanx base
In- post interosseus c7,8
A- extend all j of thumb
extensor indicies- O, I, IN, A
O- ulna post lower 1/3 (under ext pol longus)
I- extensor exp of 2nd digit
IN- post interosseus c7,8
A- extend hand and indicies
