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When an air traffic controller issues radar traffic information in relation to the 12-hour clock, the reference the controller uses is the aircraft's...

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49. Choose the FALSE statement regarding the causes and consequences of increased compliance of the venous system: A. venous compliance is greater because the vascular walls are thicker B. the vascular walls adapt more easily to the pressure as the venous tensional regime involves lower pressures compared to those in the arteries C. veins dilate more for lower pressures D. veins have an increased capacity to "store" blood E. the venous system is physiologically a "blood reservoir
45. Choose the correct statement regarding hydraulic resistance in vascular pathologies: A. Aneurysm represents the sudden reduction of the arterial caliber through atheromatosis as an inflammatory response to local damage to the vascular endothelium; B. Arterial stenosis represents the sudden increase in arterial caliber through structural degeneration of the vascular wall (reduction of elastin and increase of collagen) C. Angiogenesis represents the alternative blood pathway in case of arterial stenosis in the coronary vessel system D. The shunt is a healing process or as a pathological process in the neoformation E. All false statements
44. Choose the correct statement regarding hydraulic resistance in the circulatory system: * A. In smaller vessels the resistance to flow is lower B. In pathological cases of increased viscosity (sdr. hyperviscosity, polycythemia), resistance decreases. C. In long vessels the resistance is lower. D. The rapid rise in pressure can lead to tissue hypoperfusion with low O2 and nutrient supply. E. The pressure loss is greater in longer vessels

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