Exam 1 Review (Final Prep) Cardiovascular System questions with correct answers

Pericardium Correct Answer-Bilayer membrane sac surrounding the heart Myocardium Correct Answer-Cardiac muscle tissue Pulmonary arteries Correct Answer-Transport deoxygenated blood from the heart to the lungs The underlying ion movement that contributes to to plateau phase of myocardial contraction is... Correct Answer-Calcium which contributes to the increased refractory period What is the function of the AV and semilunar valves? Correct Answer-To permit blood flow forward while preventing back flow What is the pathway of blood flow from when it enters the heart to when it enters systemic circulation? Correct Answer-Venae cavae, right atrium, right ventricle, pulmonary arteries, pulmonary veins, left atrium, left ventricle, Aorta