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
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.