Cardiology Fisdap Test Prep Questions With Correct Answers

pericardial friction rub - to and fro sound inbetween systole and diastole (due to pericarditis) - Answer Divisions of Left Main Coronary Artery (LMCA) - Answer Left Anterior Descending & Circumflex coronary artery Left Main Coronary Artery supplies what? - Answer Left Ventricle, Interventricular Septum, Part of Right Ventricle Right Coronary Artery supplies what? - Answer Right Atrium, Right Ventricle, Part of Left Ventricle Diastole - Answer Period when ventricles relax and are passively filled with blood Systole - Answer Contraction of heart muscle Preload - Answer Initial stretching of cardiac myocytes prior to left sided contract Afterload - Answer blood is driving out of the heart against system arteries Which side (right or left) of the heart is a low pressure pump? - Answer right side Layers of blood vessels from outer to inner... - Answer Tunica Adventitia Tunica Media Tunica Intima Epithelium (creates lumen of blood vessels) Which type of vessel (arteries or veins) have more muscular layer allowing them to better contract? - Answer arteries What aids venous return to the heart? - Answer Valves prevent backflow & Skeletal muscle and thoracoabdominal pumps aid venous return Cardiac Output - Answer Amount of blood pumped out by either ventricle Normal CO for an adult is 5-6L/min CO is a function of HR and Stroke Volume Stroke Volume - Answer Amount of blood pumped out by either ventricle in a single heartbeat SV is 60-100ml normally Ejection Fraction - Answer Percent of blood that leaves the heart each time it contracts Normal range of 55-70% from left ventricle Frank-Starling mechanism - Answer A characteristic of cardiac muscle that enables it when stretched to contract with greater force Inotropic - Answer Contractility of heart Chronotropic - Answer Rate of heart Dromotropic - Answer Electrical conductivity of heart Depolarization of Myocytes - Answer Cells receive stimulus from conduction Permeability of cell changes and allows in Sodium and Calcium Repolarization - Answer Closing of sodium and calcium channels Potassium channels open and lets K+ leave cell which restore original resting membrane potential