Heart and along the conduction system of the heart. The heart receives blood low in oxygen from the systemic circulation, which enters the right atrium from the superior and inferior venae cavae and passes to the right ventricle. From here it is pumped into the pulmonary circulation, through the lungs where it receives oxygen and gives off carbon dioxide. Oxygenated blood then returns to the left atrium, passes through the left ventricle and is pumped out through the aorta to the systemic circulation−where the oxygen is used and metabolized to carbon dioxide. The heart beats at a resting rate close 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