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
Susana (given name) Susana (given name) Susana is a feminine given name. Like its variants, which include the names Susanna and Susan, it is derived from Σουσάννα, "Sousanna", the Greek form of the Hebrew שושנה, "Shoshannah", which could have been derived from the Aramaic language. ܫܘܫܢ, "Shoshan" means "lily" in Syriac. سوسن, "Susan", is the Persian spelling of this name. The spelling "Susanna" is used in Sweden, Italy, the Netherlands and Finland, as well as much of the English-speaking world. "Zuzana" is used in Czech Republic and Slovakia, and the spelling is "Zsuzsanna" in Hungary. In Polish it is "Zuzanna". In addition to