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
Heather (given name) For example, the name Heidi in German resembles "Heidekraut", which is the German word for the Heather shrubs, though the name Heidi usually is attributed to "ruler". The name Erica actually has two meanings, one of which is related to the Heather plant whose Latin name is "Ericaceae". Its other meaning is equal to that of the German meaning of Heidi, meaning "ruler". This leaves the impression that the shrub name and the meaning of "ruler" are similar, or it is a large coincidence. Heather (given name) Heather is a common English speaking nation given name, for girls. The name