1.The layer of the pericardium that is also called epicardium is the _____. fibrous pericardium pericardial fluid parietal layer of the serous pericardium visceral layer of the serous pericardium endothelial layer of the serous pericardiumQuestion 2. The base of the heart is formed by the _____. right atrium and right ventricle left atrium and left ventricle ventricles atria interventricular septumQuestion 3. Which layer of the heart consists of endothelial cells? Epicardium Myocardium Endocardium Fibrous pericardium Serous fluidQuestion 4.The muscular ridges within the anterior wall of the right atrium that extend into the auricle are called the _____. pectinate muscles trabeculae carneae coronary sulci papillary muscles chordae tendineaeQuestion 5.Blood passes from the right ventricle into the pulmonary arteries through the _____. bicuspid valve pulmonary semilunar valve tricuspid valve aortic semilunar valve fossa ovalis
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