68) The pulmonary semilunar valve prevents backward flow into the A) right ventr
ID: 3517955 • Letter: 6
Question
68) The pulmonary semilunar valve prevents backward flow into the A) right ventricle. B) pulmonary veins. C) pulmonary trunk D) aorta. E) left atrium. 69) ADH and aldosterone secretion are part of the body's long-term compensation for A) hypertension. B) a heart attack. C) a heavy meal. D) a serious hemorrhage E) prolonged exercise 70) The earlike extension of the atrium is the A) auricle B) ventricle C) coronary sinus D) coronary sulcus. E) atricle 71) The blood colloid osmotic pressure mostly depends on the A) concentration of plasma proteins. B) concentration of plasma glucose C) concentration of plasma sodium ions D) concentration of plasma waste products E) number of red blood cells 72) Which of the following breaks the rule that arteries carry oxygenated blood away from the heart? A) superior vena cava B) aorta C) pulmonary arteries D) common carotid artery E) pulmonary veins 73) Which of the following factors will increase the net filtration pressure to move fluid out of capillaries? A) decreased tissue hydrostatic pressure B) decreased plasma albumen C) increased blood hydrostatic pressure D) all of the above E) none of the aboveExplanation / Answer
68. Right ventricle - pulmonary valve is present between right ventricle and pulmonary artery (which carry blood to lung) so it prevent backflow into RV.
69. Serious hemmoharige - ADH and Aldosterone increase water reabsorption from nephrons thus prevent water loss. This increase blood volume and compensate for blood loss.
70. Auricle - named so because our ear are also called Auricle.
71. Concentration of plasma protein - osmotic presaure is exerted by non-diffusable components of blood. Pritein mainly albumin maintain plasma osmotic pressure.
72. Pulmonary artery - it carries Deoxygenated blood from RV to lung for oxygenation. Oxygenated blood then travel via Pulmonary vein to LA.
73. All of the above -
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