BIO 117 HONDROS EXAM 3 QUESTIONS WITH 100 % CORRECT ANSWERS | VERIFIED

The apex of the heart is located - Answer-5th intercostal space Which layer of the heart allows it to act as a pump? - Answer-Myocardium What is the apex of the heart? - Answer-The tip of the heart, pointing down towards the left 5th intercostal space. Which layer of the heart wall contains the epicardium? - Answer-Pericardium What surrounds the heart? - Answer-Pericardium What is related to the mitral valve (tricuspid valve)? - Answer-Bicuspid valve Which of the following contains oxygenated blood? - Answer-Left Atrium, Pulmonary veins, Aorta Which of the following contains deoxygenated blood? - Answer-Superior Vena Cava, Right Atrium, Pulmonary Arteries What supplies oxygenated blood to the heart muscle? - Answer-Coronary Arteries Which layer of the heart contains actin, myosin, and troponin? - Answer-Myocardium Which valves are open during atrial systole? - Answer-Tricuspid Mitral What is true of blood leaving the tissues and traveling towards the right atrium? - Answer-Oxygen poor, carbon dioxide rich Valve that prevents backflow of blood into the left ventricle when the left ventricle is in diastole? - Answer-AorticThe aorta receives blood from what structure? - Answer-Left ventricle Which vessel carries blood from the pulmonary capillaries to the left atrium? - Answer-Pulmonary veins Which cavity of the heart first receives unoxygenated blood from the vena cava? - Answer-Right atrium What is the right semilunar valve separating the right ventricle and the pulmonary artery? - AnswerThe pulmonic valve What is the function of the pulmonic valve? - Answer-To prevent blood flow from the pulmonary arteries to the right ventricle during ventricular diastole What do heart rate and stroke volume determine? - Answer-Cardiac output What is the left ventricle doing when the right ventricle is contracting? - Answer-Pumping blood into the great vessels Where does the cardiac action potential normally originate? - Answer-SA node What chamber is the pacemaker located in? - Answer-right atrium What is the function of the perkinje fibers? - Answer-To conduct electrical signals throughout the ventricles Where is BP the lowest? - Answer-Inferior vena cava What vessel carries unoxygenated blood from the liver to the inferior vena cava? - Answer-Hepatic Veins Circulation in the lower extremity is assessed by palpating which artery? - Answer-FemoralWhat artery supplies the head and neck region? - Answer-Carotid Largest vein in the body? - Answer-Vena Cava