a. main difference between arteries and arterioles is that iolar walls contain m
ID: 177264 • Letter: A
Question
a. main difference between arteries and arterioles is that iolar walls contain more muscle than arterial walls Arteries are than d. Rela ve to their d arterial walls are thicker than arteriolar walls larger than Arteries can Which change their diameter while arterioles cannot a. Skeletal receive the most blood during normal resting conditions muscles b. Visceral organs e. Skin d. Heart muscle so. pulmonary circulation starts from the b. Left ventricle and terminates in the right atrium c. Left ventricle and terminates in the left atrium. d. Right atrium and terminates in the left atrium. 51. e. Right ventricle and terminates the right atrium. which blood vessels are responsible for the redistribution of blood during exercise? a. Arterioles b. Capillaries ic. Veins e. Vena Cava. 52. All gas d. Venules and tissues occurs a. exchange between the vascular system Venules c. Capillaries e. Veins b. Arterioles d. Lymphatic vessels 53. In which of the following situations the muscle pump is operational? a. Static exercises b. Standing c. Laying down d. Rhythmic dynamic exercises e. Laying down with elevated legs 54. Backflow of blood from the arteries into the ventricles is prevented by the a. Bicuspid valve d. Semilunar valves e. Arteriolar muscles. b. Mitral valveExplanation / Answer
48.C arterial walls are thicker than arteriolar walls
49.C. Brain
50. D
51.B capillaries
52.C capillaries
53.B. Standing
54.D. Semilunar
55. B. Systolic pressure
56.C. Stroke volume
57.d. Smaller heart size
58.a. Higher
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