The<unk>  is one of four chambers (two atria and two ventricles) in the human heart. It receives oxygenated blood from the<unk>  atrium via the mitral valve, and pumps it into the aorta via the aortic valve.
Left ventricle
Right ventricle
Right atrium
Thoracic aorta
Atrioventricular node
Coronary sinus
Pulmonary valve
Atrium 