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
Hanif (given name) Hanif (given name) Hanif (Arabic: حنيف) is an Arabic masculine given name, which means a righteous person or a true believer. The origin of the word is uncertain, although it is generally agreed that it is derived from the Syriac word "hanpe", which means 'heathen'. It is generally agreed that the word Ḥanīf (plural: ḥunafā') is derived from the Syriac word "hanpe", which means 'heathen'. However, there is no credible theory which can explain the transformation of the term's meaning – from heathen to monotheist. Nabataeans used Hanif's cognate to designate a follower of Hellenized religion. And Nabataean is generally