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
Maria (given name) Maria (given name) Maria is a feminine given name. It is given in many languages influenced by Latin Christianity. It has its origin as the feminine form of the Roman name Marius (see Maria (gens)), and, after Christianity religion has spread across the Roman empire, it became the Latinised form of the name of Miriam - Mary, mother of Jesus. "Maria" (Μαρία) is a form of the name used in the New Testament, standing alongside "Mariam" Μαριάμ. It reflects the Syro-Aramaic name "Maryam", which is in turn derived from the Biblical Hebrew name "Miriam". As a result of their similarity