Atrium (heart) similar function. Some animals (amphibians and reptiles) have a three-chambered heart, in which the blood from each atrium is mixed in the single ventricle before being pumped to the aorta. In these animals, the left atrium still serves the purpose of collecting blood from the pulmonary veins. In some fish, the circulatory system is very simple: a two-chambered heart including one atrium and one ventricle. Among sharks, the heart consists of four chambers arranged serially (and therefore called a serial heart): blood flows into the most posterior chamber, the sinus venosus, and then to the atrium which moves it 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