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In human anatomy, the axillary artery is a large blood vessel that conveys oxygenated blood to the lateral aspect of the thorax, the axilla (armpit) and the upper limb. Its origin is at the lateral margin of the first rib, before which it is called the subclavian artery. After passing the lower margin of teres major it becomes the brachial artery. ==Structure== The axillary artery is often referred to as having three parts, with these divisions based on its location relative to the Pectoralis minor muscle, which is superficial to the artery. * First part - the part of the artery medial to pectoralis minor * Second part - the part of the artery that lies posteriorly to pectoralis minor * Third part - the part of the artery lateral to pectoralis minor 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「Axillary artery」の詳細全文を読む スポンサード リンク
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