Physio 1 mcq .pdf

Physiology MCQ MCQ LECTURE (1) DR. El-Sawy 0  Physiology MCQ 1) About the total body...

Physiology MCQ MCQ LECTURE (1) DR. El-Sawy 0  Physiology MCQ 1) About the total body fluids, all the following is true except: a. It constitutes about 60 % of body weight b. It has many functions in the body. D c. Together with solutes, it forms the body fluids. d. It is formed mainly of the interstitial fluid. 2) In a man aged 32 years whose body weight is 60 Kg., the: a. Total body fluids is 0.6 litre / kg body weight b. ECF volume is 8 liters. A c. ICF volume is 2 liters. d. Plasma volume is 5 liters. 3) The extracellular fluid (ECF) differs from the intracellular fluid (ICF) in that: a. It forms the major proportion of the total body water. B b. It has a higher sodium than potassium c. It has a lower Na than ICF. d. It has higher K than ICF. 4) intracellular fluids contain high concentrations of: a. Na ions b. Proteins B c. Chloride ions d. Calcium ions DR. El-Sawy 1  Physiology MCQ 5) As regards body fluids : a. The extracellular fluid constitutes two thirds of total body fluids. b. The transcellular fluid is about 4 liter in volume. C c. The intracellular fluid constitutes about 25-28 liters of total body fluids. d. The interstitial fluid volume equals 25 liters 6) Extracellular fluid include: a) Plasma only. b) Interstitial fluid only. D c) Tanscellualr fluid only d) Plasma, Interstitial and Tanscellualr fluid 7) Body fluids are solutions of water containing: a) Organic molecules only. b) Inorganic molecules only. D c) Ions only. d) Organic molecules, inorganic molecules & ions 8) The ion present in highest concentration inside most cells is: a) Sodium b) Potassium. B c) Calcium. d) Chloride. 9) Cerebrospinal fluid is considered: a) Intracellular fluid b) Extracellular fluid. C c) Transcellular fluid. d) Interstitial fluid DR. El-Sawy 2  Physiology MCQ 10) lon with highest concentration outside the cell is: a) Sodium b) Potassium. A c) Calcium d) protein. 11) About the extracellular fluid volume, all the following are true except: a. its chief cation is Na+ and chief anion is Cl D b. its volume is about 14-15 liter. c. its volume body weight is decreased in obesity. d. it contains more K+, PO4 and proteins than the intracellular fluid 12) About the interstitial fluid: a. its protein content is lower than that of the ICF b. its volume is determined by the sucrose space. A c. its volume equals the total body water minus the ECF volume. d. its volume is measured as the Evans blue space. 13) Deuterium oxide (D2O) measures volume of the: a) Interstitial fluid. b) Total body water. B c) Extracellular fluid. d) Intracellular fluid. 14) An appropriate dilution indicator for measuring: A.Total body water is sucrose. B.Plasma volume is radioactive sodium. C C.Extracellular fluid volume is inulin. D.Intracellular fluid volume is heavy water (deuterium oxide) DR. El-Sawy 3  Physiology MCQ 15) For measuring ECF, we use: a. Deuterium oxide b. Evans blue dye D c. Radioactive iodine d. inulin 16) For measuring plasma volume, we use : a) Deuterium oxide b) Evans blue dye B c) inulin d) All of the above DR. El-Sawy 4  Physiology MCQ 17) The total body water: a. Is equally distributed inside and outside body cells. b. Is not important for regulation of body temperature. C c. Forms a smaller percentage of the body weight in fat persons. d. Its percentage tends to increase with age. 18) Total body water constitutes: a. In Men: 40% of body weight. b. In Women: 70% of body weight. D c. In Old age, water content is increased d. ↑ percentage of fat in the body decreases the percentage of water 19) About water balance: a. Insensible water loss equals about 100 ml/day. b. Urine output equals about 700 ml/day. D c. Water loss in feces equals 1500 ml/day. d. Sweating represents only 100 ml/day of water loss under normal conditions. 20) Water input is about: a) 400 ml/day b) 1400 ml/day C c) 2400 ml/day d) 3400 ml/day 21) Water output is about: a. 400 ml/day b. 1400 ml/day C c. 2400 ml/day d. 3400 ml/day DR. El-Sawy 5  Physiology MCQ 22) Total body water: a) Constitutes 5% in children b) Constitutes 20% in women. C c) Decrease in old age. d) Constitutes 40% in adult man DR. El-Sawy 6  Physiology MCQ 23) Positive feedback mechanism is important in: a. Regulation of arterial blood pressure b. Regulation of body temperature. D c. Regulation of blood glucose d. labor 24) About feedback control systems, all is true except: a. They may be either negative or positive. b. Negative feedback systems oppose changes and maintain stability. D c. Positive feedback systems amplify the changes. d. Regulation of normal body temperature is considered positive feedback mechanism. 25) The negative feedback: a. Occurs when the effect is opposite to the change. b. Occurs when the effect is parallel to the change. A c. Is not important for our body d. Must be preceded by positive feedback. 26) Concerning positive feedback, all following is true except : a. It occurs during blood clotting. b. It is more common than negative feedback mechanism B c. it exaggerates any change d. it is important in labor. DR. El-Sawy 7