BIO 106 Chapter Notes - Chapter 18: Superior Vena Cava, Pulmonary Valve, Aortic Valve
Document Summary
Superior vena cava: drains the upper body from o2 poor blood. Aorta: main systemic artery, which sends blood all over the body. Pulmonary trunk: artery, which sends o2 poor blood to the lungs. Pericardium: wraps the heart: pericardium: the membrane enclosing the heart, consisting of an outer fibrous layer and inner double layer of serous membrane. Functions for anchoring, cushioning, protection, and getting rid of friction. Fibrous pericardium: outer covering of the pericardium, for strength. Parietal layer: parietal (outer layer of the serous pericardium) Epicardium: outer layer serous membrane (visceral layer of serous pericardium) Myocardium: muscle layer, middle layer of the heart cavity. Endocardium: wraps the inner surface of the heart, inner layer. Heart chamber: structures of the heart. Pectinate muscles: ridges within the right atrium. Chordae tendineae: anchored to the heart by the atrioventricular valves (connective tissue that prevents backflow. Opening and closing of them is passive, result in changes of pressure)
