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
Camilla (given name) of 1796. The form "Camille" was later associated with the heroine of Dumas' "The Lady of the Camellias" (1848), which served as the basis for Verdi's opera "La Traviata" and several films. In Dumas' novel, "Camille" is not the given name of the heroine; this name was applied to her in derived works in the English-speaking world, presumably due to the similarity in sound to the floral name "Camellia" (which was coined by Linnaeus (1753) after the name of the Czech Jesuit missionary Georg Joseph Kamel). The name "Camille" was given to the heroine as early as in a silent