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The fascial compartments of arm are the sectional divisions of the segments of the upper limb of the body. The segments of the upper limb are the arm and the forearm. Likewise, the lower limb can be divided into segments – the thigh, and the lower leg. The fascial compartments are formed by deep fasciae – tough connective tissue septa (walls), which divide and separate each segment. Each compartment encloses specific muscles and nerves. The compartments of the arm are the anterior and the posterior compartments, divided by the lateral and the medial intermuscular septa. ==Intermuscular septa== The lateral intermuscular septum extends from the lower part of the crest of the greater tubercle of the humerus, along the lateral supracondylar ridge, to the lateral epicondyle; it is blended with the tendon of the deltoid muscle, gives attachment to the triceps brachii behind, and to the brachialis, brachioradialis, and extensor carpi radialis longus muscles in front. It is perforated by the radial nerve and profunda branch of the brachial artery. The medial intermuscular septum, is thicker than the lateral intermuscular septum. It extends from the lower part of the crest of the lesser tubercle of the humerus below the teres major, and passes along the medial supracondylar ridge to the medial epicondyle; it is blended with the tendon of the coracobrachialis, and gives attachment to the triceps brachii behind and the brachialis in front. It is perforated by the ulnar nerve, the superior ulnar collateral artery, and the posterior branch of the inferior ulnar collateral artery. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Fascial compartments of arm」の詳細全文を読む スポンサード リンク
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