English Anatomy of the human heart Cited by user Cinadon36 on 18 May 2020 Heart is a muscular organ sited in the mediastinum. It consist of four chambers, four valves, arteries (named as coronary arteries), and the conduction system.
English Richard DeWall Cited by user Whispyhistory on 13 Feb 2019 Richard DeWall (1926-2016), was an American cardiothoracic surgeon who created the first workable, portable bubble oxygenator in 1955.