解剖标志 First rib, superior thoracic aperture胸廓入口, vertebrae, anterior and middle scalene muscle 前中斜角肌
静脉cephalic vein头静脉, subclavian vein锁骨下静脉 internal jugular vein颈内静脉, brachiocephalic vein头臂静脉, superior vena cava上腔静脉
动脉：subclavian锁骨下动脉, axillary腋动脉, brachial肱动脉, trachae气管, common carotic artery颈总动脉, brachiocephalic trunk头臂干, arch of the aorta主动脉弓, transverse cervical artery颈横动脉, suprascapular artery肩胛上动脉
Transverse cervical artery, suprascapular artery位置可有变异
胸大肌下方的thoraco-acromial artery胸肩峰动脉, lateral thoracic artery胸外侧动脉
Subscapular artery肩胛下动脉, anterior and posterior circumflex humeral arteries上下旋肱动脉
臂丛的神经不同束支存在反复合并与分开
Brachial plexus, roots of the brachial plexus, Trunk (upper, middle, lower), 每个都会分成前后divide to anterior and posterior, cords (lateral posterior medial)，包绕在axillary artery腋动脉
Lateral cord外侧束–musculocutaneous nerve肌皮神经, upper 1/2 of median nerve
Medial cord外侧束 –lower 1/2 of median nerve, ulnar nerve
Posterior cord 后侧束– axillary nerve and radial nerve
Medial pectoral nerve 和lateral pectoral nerve支配胸大胸小肌
Musculocutaneous nerve支配喙肱肌等三个肌肉
Axillary nerve 支配三角肌小圆肌
Subscapular nerve 支配肩胛下肌、大圆肌
Thoraco-dorsal nerve 背阔肌
Suprascapular nerve 支配冈上肌、冈下肌
Dorsal scapular nerve 支配菱形肌
Long thoracic nerve胸长神经来自C5 c6 c7神经根，支配前锯肌
Spinal accessory nerve支配斜方肌
肩胛提肌由来自于c3 c4 c5神经根分出的神经支配
