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
Avery (given name) the 634th most common given name for males in the United States in the 1910 census. In the Russian language, Avery () is a colloquial form of the male given name Averky. Avery (given name) Avery is a given name, which was originally an English surname, that was itself derived from an Old French version of the name Alfred or the Ancient Germanic name Alberich. The meaning of the name is derived from the Old English words "aelf", meaning "elf", and "raed", meaning "counsel." Avery was originally more common as a boys' name, but it is becoming more popular and