Deltoid Muscle Biceps Brachii Brachioradialis Muscle Palmaris Longus Muscle Extensor Carpi Radialis Longus Muscle Extensor RetinaculumDorsal Interossei Muscle Extensor Carpi Ulnaris Muscle Extensor Digitorum Communis Muscle Extensor Carpi Radialis Brevis Muscle Triceps Brachii Muscle Biceps Brachii Muscle Posterior Brachialis Muscle
Flexor Carpi Radialis Muscle
FCR is a long and fusiform muscle.
ORIGIN AND INSERTION
It originates from medial epicondyle of humerus, also known as common flexor origin and ends up attaching distally to base of second metacarpal bone. Its tendon lies in its own tendinous sheath as it traverses through wrist.
Ulnar artery is responsible for its arterial supply via small muscular branches.
FCR is innervated by median nerve (C6, C7), arising from brachial plexus.
Flexor carpi radialis performs two important functions of flexing and abducting the hand at wrist joint. For testing this muscle, the patient is asked to flex the wrist against some resistance and its tendon can be seen and palpated normally.