What is the name for the muscular ridges on the inner walls of the right and left ventricles? A. Chordae tendineae B. Pectinate muscles C. Trabeculae carneae D. Auricles
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Which of the following structures are found in the atria of the heart? A. trabeculae carneae B. pectinate muscles C. skeletal muscle D. papillary muscles
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6. The muscles that attach to tendinous cords (chordae tendineae) are called: papillary muscles b. pectinate muscles c. pectoral muscles d. trabeculae carneae (apex/base) of the heart (right/left) ventricle is much thicker than the wall of the 8. The wall of the (right/left) ventricle parietal visceral layer 9. The layer of the pericardial sac that adheres to the heart is the (left/right) coronary 10. Most of the anterior surface of the heart receives oxygenated blood from a branch of the bicuspid/tricuspid valve artery. 11. The valve between the right atrium and the right ventricle is the bicuspid/tricuspid valve 12. The valve between the left atrium and the left ventricle is the aorta/pulmonary trunk) 13. The left ventricle pumps blood into the (left/right) atrium. 14. The superior and inferior vena cava drain blood into the
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In the heart, trabeculae carnae function to: A. attach to chordae tendinae which anchor the AV valvles B. increase the uptake of nurtients from blood in its chambers C. prevent blood from being stagnant and clotting D. contract in many directions to make sure that blood is always moving E. increase the surface area of the myocardium
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