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THORACIC AORTANAJIHAHNABIHAHNAEMAHHAFIZAH

THORACIC AORTAASCENDING AORTAARCH OF AORTADESCENDING AORTA

BEGINNING:Aortic opening of left ventricle behind left margin of sternum opposite third left intercostal space

ENDING:Behind right margin of sternum,opposite second right costal cartilage where it becomes continuous with arch of aorta

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ARCH OF AORTABEGINNINGBehind right margin of sternum,opposite second right sterno-costal junction as a continuation of ascending aorta.

ENDINGLeft side of the lower border of the fourth thoracic vertebra where it becomes continuous with descending thoracic aorta

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DESCENDING AORTA BEGINNINGAs a continuation of arch of aorta,at the left side of lower border of fourth thoracic vertebra

ENDINGOpposite lower border of twelfth thoracic vertebra in median plane through aortic opening of diaphragm.

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