The thoracic aorta is part of the aorta, which has different parts named according to their structure or location. The thoracic aorta is a continuation of the descending aorta and becomes the abdominal aorta when it passes through the diaphragm.The initial part of the aorta, the ascending aorta, rises out of the left ventricle, from which it is separated by the aortic valve.he thoracic aorta is a continuation of the descending aorta and becomes the abdominal aorta when it passes through the diaphragm. The initial part of the aorta, the ascending aorta, rises out of the left ventricle, from which it is separated by the aortic valve.
TACKING definition - Engl. law. The union of securities given at different times so as to prevent any intermediate purchasers claiming title to redeem or otherwise discharge on TACKING definition - Engl. law. The union of securities given at different times so as to prevent any intermediate purchasers claiming title to redeem or otherwise discharge on Skip to primary navigation
scaling. 1  transitive verb. 2  1 : to remove the scale or scales from (as by scraping) scale a fish. 3  2 : to take off in thin layers or scales scale tartar from the teeth.  3 : to throw (as a thin flat stone) so that the edge cuts the air or so that it skips on water 1  : skim. intransitive verb.  1 : to separate and come off in scales : flake.