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
Which Bridge to Cross (Which Bridge to Burn) Which Bridge to Cross (Which Bridge to Burn) "Which Bridge to Cross (Which Bridge to Burn)" is a song co-written and recorded by American country music artist Vince Gill. It was released in January 1995 as the fourth single from the album "When Love Finds You". The song reached number 4 on the "Billboard" Hot Country Singles & Tracks chart. It was written by Gill and Bill Anderson. Deborah Evans Price, of "Billboard" magazine reviewed the song favorably calling it a "classic slow country waltz." She goes on to say that the song "makes optimum use of those classic changes