Radial wrist flexor

Radial wrist flexor , m. Flexor carpi radialis, is a two-fingered flat long muscle. It is lateral to all flexors of the forearm. In the proximal part is covered only by the aponeurosis of the biceps arm muscle and m. Palmaris longus, and the rest, the large, part of the muscle - only fascia and skin. The muscle begins from the medial epicondyle of the humerus, the intermuscular septum and the fascia of the forearm; It is directed downwards and passes under the flexor holder to the base of the palmar surface of II (III) metacarpal bone.

Function: bends and penetrates the brush of this layer. It has two heads: a large head, caput humerale, which starts from the medial epicondyle of the humerus, the medial intermuscular septum of the shoulder and the fascia of the forearm, and the smaller ulnar head, caput ulnare, lying beneath it and originating from the medial edge of the tuberosity of the ulna. Both heads form a slightly flattened front to back abdomen, passing into a narrow tendon. The muscle goes obliquely from the inside to the outside and is attached to the middle third of the lateral surface of the radial bone.

Function: penetrates the forearm.

Innervation: n. Medianus (CVI-CVII).

Blood supply: aa. Brachialis, ulnaris, radialis.

Innervation: n. Medianus [CVI - CVII (CVIII)].

Blood supply: a. Radialis.