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.
Airbus A340-500. The A340-500 is the world's second longest range airliner, allowing for a maximum distance of 16,670km (9,000nmi) with flight durations of up to 19 hours. The A340-500 took to the sky for its first flight in February 2002 and made its debut with Emirates in December 2003.
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).