Atrium (heart) similar function. Some animals (amphibians and reptiles) have a three-chambered heart, in which the blood from each atrium is mixed in the single ventricle before being pumped to the aorta. In these animals, the left atrium still serves the purpose of collecting blood from the pulmonary veins. In some fish, the circulatory system is very simple: a two-chambered heart including one atrium and one ventricle. Among sharks, the heart consists of four chambers arranged serially (and therefore called a serial heart): blood flows into the most posterior chamber, the sinus venosus, and then to the atrium which moves it to
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