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
Jade (given name) for boys and girls in the United States with multiple spelling variants, is also sometimes seen as a variant of Jade. Jade has become increasingly popular in France since 1990. It was the 7th most given name for girls there in 2005. Jade (given name) Jade is a given name derived from the ornamental stone jade, which is used in artwork and in jewellery making. The name is derived from the Spanish "piedra de la ijada", which means "stone of the colic." There was a belief that when jade was placed on the stomach, it could cure colic in babies.