the right subclavian artery branches off the brachiocephalic artery. the left subclavian artery is the third branch off the aortic arch. the internal carotid arteries arise from the common carotid arteries and supply blood to the brain and orbits.
The Airbus A350-900 is the tenth longest range airliner reaching a maximum distance of up to 14,350km (8,250nmi). It is one of the variants in the A350 XWB family. The aircraft can accommodate 315 passengers in a two-class seating configuration.
In recent years, the battle for long-range has been fought out by Airbus and Boeing, the world's primary manufacturers of commercial aircraft. The two planes that have been at the center of the struggle to date are the Airbus A340 and the Boeing 777. Airbus unveiled its long-range A340-500 in 2002. This model seats about 300 in a typical layout and has a range of 8,665 nm (16,050 km).