Bio 117 Hondros Exam 3 Study Guide
The apex of the heart is located (Ans- 5th intercostal space
Which layer of the heart allows it to act as a pump?(Ans- Myocardium
What is the apex of the heart?(Ans- The tip of the heart, pointing down towards the left 5th intercostal space.
Which layer of the heart wall contains the epicardium?(Ans- Pericardium
What surrounds the heart?(Ans- Pericardium
What is related to the mitral valve (tricuspid valve)?(Ans- Bicuspid valve
Which of the following contains oxygenated blood?(Ans- Left Atrium, Pulmonary veins, Aorta
Which of the following contains deoxygenated blood?(Ans- Superior Vena Cava, Right Atrium, Pulmonary Arteries
What supplies oxygenated blood to the heart muscle?(Ans- Coronary Arteries
Which layer of the heart contains actin, myosin, and troponin?(Ans- Myocardium
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Which valves are open during atrial systole?(Ans- Tricuspid Mitral
What is true of blood leaving the tissues and traveling towards the right atrium?(Ans- Oxygen poor, carbon dioxide rich
Valve that prevents backflow of blood into the left ventricle when the left ventricle is in diastole?(Ans- Aortic
The aorta receives blood from what structure?(Ans- Left ventricle
Which vessel carries blood from the pulmonary capillaries to the left atrium?(Ans- Pulmonary veins
Which cavity of the heart first receives unoxygenated blood from the vena cava?(Ans- Right atrium
What is the right semilunar valve separating the right ventricle and the pulmonary artery?(Ans- The pulmonic valve
What is the function of the pulmonic valve?(Ans- To prevent blood flow from the pulmonary arteries to the right ventricle during ventricular diastole
What do heart rate and stroke volume determine?(Ans- Cardiac output
What is the left ventricle doing when the right ventricle is contracting?(Ans- Pumping blood into the great vessels
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