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
Brendan (given name) Brendan (given name) Brendan is an Irish masculine given name in the English language. It is derived from the Gaelic name Breandán, which is in turn derived from the earlier Old Irish Brénainn. The Old Welsh "breenhin" is the root of the name, meaning Prince or King. The mediaeval Latin form of the name, Brendanus, has also influenced the modern English and Irish forms. Variant spellings of "Brendan" are Brendon and Brenden. In some cases it is possible that the given name "Brandon" is also a variant of "Brendan". A variant spelling of the Irish "Breandán" is Breanndán. The English