KIN 272 Chapter Notes - Chapter 18: Superior Vena Cava, Coronary Sinus, Pulmonary Vein
Document Summary
18. 1 the heart has four chambers and pumps blood through the pulmonary and systemic circuits. The right side of the heart is the pulmonary circuit pump. It pumps blood through the lungs, where the blood picks up oxygen and dumps carbon dioxide. The left side of the heart is the systemic circuit pump. It pumps blood through the body"s tissues, supplying them with oxygen and nutrients and removing carbon dioxide. The human heart, about the size of a clenched first, is located obliquely within the mediastinum of the thorax. The heart is enclosed within a double sac made up of the outer fibrous pericardium and the inner serous pericardium (parietal and visceral layers) The pericardial cavity between the serous layers contain lubricating serous fluid. Layers of the heart wall, from the interior out, are the endocardium, myocardium (reinforced by a fibrous cardiac skeleton), and epicardium (visceral layer of the serous pericardium)
