Heart and along the conduction system of the heart. The heart receives blood low in oxygen from the systemic circulation, which enters the right atrium from the superior and inferior venae cavae and passes to the right ventricle. From here it is pumped into the pulmonary circulation, through the lungs where it receives oxygen and gives off carbon dioxide. Oxygenated blood then returns to the left atrium, passes through the left ventricle and is pumped out through the aorta to the systemic circulation−where the oxygen is used and metabolized to carbon dioxide. The heart beats at a resting rate close to
Douglas (given name) of the given name is , which is pronounced ; a variant form of this name is "Dougalasa". The given name "Doug" is a common short form variant of "Douglas". Pet forms of the given name include: "Dougie" and "Duggie". In Scotland, while spelled "Dougie" like the above, there is a distinct Scottish pronunciation of "Doogie". Douglas (given name) Douglas is a Scottish masculine given name which originated from the surname "Douglas". Although today the name is almost exclusively given to boys, it was used as girls name in the seventeenth and eighteenth centuries, in the north of England. The