Extensor Forearm X beauty Flashcards
Muscles in the back of forearm are associated with
1.Extension of fingers
2.Movement at wrist
3.Supination
The 7 superficial muscles of extensor compartment of forearm are
Brachioradialis
ECRL
ECRB
ED
EDM
ECU
Anconeus
2 extensor muscles of forearm which do not extend as tendons to hand
BRACHIORADIALIS
ANCONEUS
Due to it s anteriolateral location wrt elbow joint the brachioradialis is an
Accesory flexor though it lies in the posterior compartment
Position of forearm during which brachioradialis acts most efficiently
Midpronated position
Radial nerver emerges in extensor forearm just deep to which muscle
Brachioradialis
Distally brachioradialis lies over the
1)Superficial branch of radial nerve
2)Radial artery
Extensor carpi radialis longus lies deep to brachioradialis
It abducts and extends the wrist
Extensor carpi radialis longus and brachioradialis is innervated by
Radial nerve before it divides into superficial and deep branches
ECRL is inserted in
Dorsal side of base of metacarpal 2
ECRB which lies deep to ECRL is inserted in
Dorsal side of base of 2 and 3rd metacarpals
ECRB is innervated by
Deep branch of radial nerve before it passes between the two heads of the supinator muscle
Posterior interossesous nerve is the continuation of
Deep branch of radial nerve after it emerges from supinator muscle
EDM is an additional extensor and is innervated by the
Posterior interossesous nerve
The only superficial extensor that adducts the wrist joint is
Extensor carpi ulnaris