Lateral supraclavicular nerve(from cervical plexus Intermediate supraclavicular nenve(from cervical plexus) Acromial branches of thoracoacromial vein Medial supraclavicular nerve 〔 rom cervical plexus) Supenor lateral brachial cutaneous nerve(from axillary nerve) Cephalic vein Medial brachial cutaneous nerve Inferior lateral brachial cutaneous nene--o Intercostobrachial nerve 〔 rom radial nerve) Branches of medial antebrachial cutaneous nerve Postenor antebrachial cutaneous Basilic vein nerve〔 rom radial nerve Lateral antebrachial cutaneous nerve Accessory cephalic vein (terminal part of musculocutaneous nerve -Intermediate(median cubital vein Perforating veins -Intermediate (median) antebrachial vein (一)浅层结构 皮肤:较薄。 浅筋膜ε薄而松弛,内有浅静脉和皮神经。• 皮肤：较薄。 • 浅筋膜：薄而松弛，内有浅静脉和皮神经。 （一）浅层结构