20_ActiveLecturePRS - The region between the two pleural...

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The region between the two pleural cavities that contains the heart and great vessels is called the ______? 1. Mediastinum 2. Visceral pericardium 3. Parietal pericardium 4. Pericardial cavity
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Which layer of pericardium touches the heart? 1. Parietal pericardium 2. Pericardial sac 3. Fibrous pericardium 4. Visceral pericardium
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Which of the following is true of cardiac muscle tissue? 1. Cardiac muscle cells are larger than skeletal muscle cells. 2. Cardiac muscle is not striated. 3. Cardiac muscle cells have intercalated discs. 4. Cardiac muscle cells are multinucleate.
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Which blood vessels bring blood back into the right atrium from systemic circulation? 1. Foramen ovale, pulmonary trunk, and ductus arteriosus 2. Superior and inferior venae cavae 3. Superior and inferior venae cavae and coronary sinus 4. Aorta, pulmonary trunk, and pulmonary veins
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How is eversion of the AV valves and backflow of blood into the atria prevented? 1. Pressure of blood pushing against the valves 2. Contraction of the ventricles 3. Closure of the semilunar valves 4. Tightening of chordae tendineae and contraction of papillary muscles
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valve. How will that affect her circulation? 1. Blood will flow more efficiently into her pulmonary trunk. 2. Blood will regurgitate into her right atrium. 3.
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20_ActiveLecturePRS - The region between the two pleural...

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