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
Brendan (given name) Brendan (given name) Brendan is an Irish masculine given name in the English language. It is derived from the Gaelic name Breandán, which is in turn derived from the earlier Old Irish Brénainn. The Old Welsh "breenhin" is the root of the name, meaning Prince or King. The mediaeval Latin form of the name, Brendanus, has also influenced the modern English and Irish forms. Variant spellings of "Brendan" are Brendon and Brenden. In some cases it is possible that the given name "Brandon" is also a variant of "Brendan". A variant spelling of the Irish "Breandán" is Breanndán. The English