Atrium (heart) 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 that term is still used to describe this chamber in, for example, the "Mollusca", but in humans that name is
Angus (given name) Angus (given name) Angus is a masculine given name in English. It is an Anglicised form of the Irish and Scottish Gaelic "Aonghas", which is composed of Celtic elements meaning "one", and "choice". A variant spelling of the Scottish Gaelic name is "Aonghus". The Irish form of the Scottish Gaelic name is "Aengus". A pet form of the given name "Angus" is "Angie", pronounced ""an-ghee"", which represents the Scottish Gaelic "Angaidh". A short form of the given name "Angus" is "Gus", which may be lengthened to "Gussie". The feminine form of "Angus" is "Angusina". The earliest form of the given