Atrium (heart) of blood occurs. In birds, mammals, and some other reptiles (alligators in particular) the partitioning of both chambers is complete. Atrium (heart) The atrium is the upper chamber in which blood enters the heart. There are two atria in the human heart – the left atrium connected to the lungs, and the right atrium connected to the venous circulation. The atria receive blood, and when the heart muscle contracts they pump blood to the ventricles. All animals with a closed circulatory system have at least one atrium/auricle (humans have two atria). The atrium used to be called the "auricle", and
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