Basilic vein Biceps brachii muscle TLong head of triceps brachii muscle Medial head of triceps brachii muscle Supenor ulnar collateral artery Medial intermuscular septum Brachialis muscle Inferor ulnar collateral artery Radial recurrent arten Medial epicondyle of humerus Bicipital aponeurosis Biceps brachii tendon Pronator teres muscle adial arten Ulnar artery Flexor carpi radialis muscle Brachioradialis muscle (二)肘前区深层结构:深筋膜、肱二头肌腱膜（二）肘前区深层结构：深筋膜、肱二头肌腱膜