Exam 1: Cardiology(100% Correct answers)

Drop of Blood through the heart correct answersSuperior and Inferior Vena Cava --> Right Atrium --> Tricuspid Valve --> Right Ventricle --> Pulmonic Valve --> Pulmonary Artery --> Lungs --> Pulmonary Veins --> Left Atrium --> Mitral Valve --> Left Ventricle --> Aortic Valve Myocardium correct answersThick, middle layer of the heart, composed of cardiac muscle cells, responsible for ability to contract Pericardium correct answersClosed, two layer sac Parietal Pericardium correct answersTough, non-elastic, fibrous connective tissue Visceral Pericardium correct answers- Thin, serous inner layer of pericardium - Pericarditis-inflammationof the serous pericardium Excess of fluid in pericardial sac is called cardiac tamponade Condition is an EXTREME EMERGENCY!! Epicardium correct answersSmooth outer surface -Coronary arteries located on the surface of Epicardium Endocardium correct answersInnermost layer, composed of connective tissue -Requires constant and uninterrupted supply of oxygen Ventricular Systole correct answersContraction of ventricles -Atrioventricular valves close and semilunar valves open Ventricular Diastole correct answersRelaxation of Ventricles -Atrioventricular valves are open and semilunar valves are closed Tunica Intima correct answersInnermost layer; Connective and elastic Tunica Media correct answersMiddle layer; Smooth muscle, elastic, collagen Tunica Adventitia correct answersOutermost layer; Connective Left Coronary Artery correct answers-Divides into the left anterior descending artery and circumflex artery - Anterior descending supplies most of anterior portion of the heart - Circumflex extends around to posterior side of heart - Major branch supplies lateral wall of left ventricle Right Coronary Artery correct answers- Extends around to posterior portion of heart - Branches supply blood to lateral wall - Posterior interventricular artery supplies posterior and inferior part of left ventricle