WGU D313 Anatomy and Physiology 2 || || || || || ||
Cardiovascular System Test questions with precise || || || || || ||
detailed answers ||
Where is the heart positioned? Choose 2 answers
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it is superior to the diaphragm
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it is medial to the lungs
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What is the cardiac muscle of the heart?
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myocardium
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Which chamber of the heart receives oxygenated blood from the lungs?
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left atrium ||
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The mitral (bicuspid) valve is between which chambers of the heart?
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left atrium and left ventricle
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Which of the following valves is not found in the heart?
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ileocecal valve ||
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,2
Semilunar valves have 2 crescent-shaped cusps (T/F)
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False
1 multiple choice option
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Which valve lies between the left ventricle and left aorta?
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aortic valve ||
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The four heart valves prevents the backflow of blood (T/F)
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True
1 multiple choice option
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Which structure prevents blood from flowing back into the atria on each side?
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tricuspid and bicuspid valve || || ||
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Which structure is responsible for the sound of the human heartbeat?
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valves
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,2
Which blood vessel carries oxygenated blood from the lungs to the left atrium?
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pulmonary veins ||
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Where are the elastic arteries located?
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near the heart || ||
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Medium veins do not have internal or elastic laminae and, therefore, are not able to withstand
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high pressure (T/F)
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True
1 multiple choice option
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Which of the following types of veins contain valves?
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medium veins ||
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Veins generally have very thick walls in relation to their diameter, with large lumen (T/F)
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False
1 multiple choice option
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Which statements are true about veins? Choose 2 answers
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, 2
they are more numerous than arteries
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they lack smooth muscle
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Using this equation NFP = (BHP + IFOP) - (BCOP + IFHP), what change in the net filtration
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would one expect with an increase of blood hydrostatic pressure?
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increase
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When would an active transport mechanism be necessary?
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when a substance must be moved against its concentration gradient
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Which blood vessel has a very small diameter and is involved in the circulation of blood to the
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capillaries?
arteriole
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Which blood vessel has the structural characteristics of both an arteriole and a capillary?
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metarteriole
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Which type of artery has more smooth muscle content and less elastic fibers?
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muscular artery ||
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