EXTENSOR POLLISIS BRAVIS MUSCLE :

extensoe pollisis bravis

extensor pollisis bracis is the part of anatomical snuff box.
it is the lateral boundries of the anatomical snuff.
this extensor pollisis bravis is the parellar to the adductor pollisis longus tendeon at the anatomical snuff bnox level.

 

ORIGIN : radius and interosseous membrane

 

INSERTION : thumb and proximal phalanx

 

NERVE SUPPLY : posterior interosseous nerve

 

ACTION/EXERCISE : extention of thumb at metacarpophalangeal joint

 

 

extensor pollicis brevis action

extensor pollicis brevis action