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.
A runway of at least 6,000 ft (1,829 m) in length is usually adequate for aircraft weights below approximately 200,000 lb (90,718 kg). Larger aircraft including widebodies will usually require at least 8,000 ft (2,438 m) at sea level and somewhat more at higher altitude airports.