MSF Exam 2 Study Guide Questions And Answers Verified 100% Correct

MSF Exam 2 Study Guide Questions And Answers Verified 100% Correct A. Veins Which vessels in the systemic circulation can be referred to as the compliance vessels? A. Veins B. Arterioles C. Capillaries D. Aorta E. Large arteries C. Resistance decreases by a factor of 16-fold If a blood pressure reducing drug dilates a blood vessel such that its radius increases by 2-fold, what effect does that have on the resistance? A. Resistance decreases by a factor of 2-fold B. Resistance decreases by a factor of 4-fold C. Resistance decreases by a factor of 16-fold D. Resistance increases by a factor of 16-fold E. Resistance increases by a factor of 2-fold A. Upon an increase in pressure, blood vessels constrict The myogenic mechanism plays an important role in autoregulation. What accurately describes the myogenic mechanism? A. Upon an increase in pressure, blood vessels constrict B. Upon an increase in pressure, blood vessels dilate C. Blood vessels do not adjust to changes in blood pressure D. Upon any change in pressure (increase or decrease), blood vessels always dilate E. Upon any change in pressure (increase or decrease), blood vessels always constrict E. Reduced ventricular filling What is the longest phase of the cardiac cycle? A. Atrial systole B. Isovolumetric contraction C. Isovolumetric relaxation D. Rapid ventricular ejection E. Reduced ventricular filling B. Vasopressin Which substance constricts blood vessels by acting on the V1 or V1A receptor? A. Norepinephrine B. Vasopressin C. Endothelin D. Adenosine E. Angiotensin II C. 6mmHg Determine the net filtration pressure in the capillaries given the following data. Hydrostatic pressure in the capillaries (Pc) = 35 mm Hg Hydrostatic pressure in the interstitial fluid (Pi) = 4 mm Hg Oncotic pressure in the capillaries (Pc) = 27 mm Hg Oncotic pressure in the interstitial fluid (Pi) = 2 mm Hg A. 3mmHg B. 5mmHg C. 6mmHg D. 8mmHg E. 10mmHg A. Peripheral edema because of a decrease in oncotic pressure in the capillaries A patient with hepatic disease fails to produce albumin at normal rates resulting in a significant decrease in the plasma albumin concentration. What condition can develop in this patient and why? A. Peripheral edema because of a decrease in oncotic pressure in the capillaries B. Peripheral edema because of an increase in oncotic pressure in the capillaries C. Peripheral edema because of an increase in the hydrostatic pressure in the capillaries D. Peripheral edema because of an increase in the hydrostatic pressure in the interstitial fluid E. There will be no edema because there is no change in the net filtration pressure D. Point 4 In the pressure-volume loop, at what point does the mitral valve open? A. Point 1 B. Point 2 C. Point 3 D. Point 4 E. All points - the mitral valve is always open C. Points 3 and 4 In the pressure-volume loop, where is the end systolic volume (ESV) A. Points 1 and 2 B. Points 2 and 3 C. Points 3 and 4 D. Points 4 and 1 E. ESV is in between points 2 and 3 E. Increased contractility and increased stroke volume In the pressure-volume loop figure, the solid line shows the normal condition. What does the dashed line depict in that figure? A. Increased preload and decreased stroke volume B. Decreased contractility and decreased stroke volume C. Increased preload and decreased afterload D. Increased afterload and decreased contractility E. Increased contractility and increased stroke volume