An artery that arises from the arch of the aorta and divides into the right subclavian and right carotid arteries. Also called brachiocephalic artery ,brachiocephalic trunk无名动脉：从大动脉的弧线处出发，分入右锁骨下动脉和右颈动脉的动脉 也作 brachiocephalic artery,brachiocephalic trunk