chapter 27

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Martini Fundamentals of Anatomy & Physiology 9th Edition Chapter 27 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) About two - thirds of the body fluid is within cells and is termed ________ fluid. A) intracellular B) intercellular C) extracellular D) interstitial E) vital Answer A 2) Intracellular fluid (ICF) is found only within A) blood vessels. B) lymph. C) the cells of the body. D) the interstitial space. E) the cerebrospinal fluid. Answer C 3) Substances that can carry electrical current across cell membranes are called A) electrons. B)
electrolytes. C) nonelectrolytes. D) osmoregulators. E) buffers. Answer B 4) Which hormone stimulates the thirst mechanism? A) ADH B) aldosterone C) BNP D) ANP E) epinephrine Answer A 5) In an adult female, the body consists of about ________ percent water. A) 60 B) 50 C) 40 D) 70 E) 80
Answer B 6) All of the following are components of ECF, except A) cerebrospinal fluid. B) peritoneal fluid. C) lymph. D) aqueous humor. E) RBCs. Answer E 7) The extracellular fluid (ECF) consists of the A) plasma. B) interstitial fluid. C) cerebrospinal fluid. D) lymph. E) All of the answers are correct. Answer E 8) In a lean adult male, the body consists of about ________ percent water. A) 60 B) 90
C) 40 D) 10 E) 80 Answer A 9) The principal cation in intracellular fluid is A) sodium. B) potassium. C) calcium. D) magnesium. E) chloride. Answer B 10) Which of the following will stimulate thirst? A) drying the mucosa of the mouth and pharynx B) angiotensin II acting on the hypothalamus C) an increase in the osmotic pressure of interstitial fluid within the hypothalamus D) stimulation of osmoreceptors E) All of the answers are correct. Answer E
11) The ions in highest concentration in the intracellular fluid are A) potassium, chloride, and bicarbonate. B) sodium, potassium, and bicarbonate. C) sodium, potassium, and calcium. D) potassium, hydrogen, and chloride. E) proteins, potassium, and phosphate. Answer E 12) The ions in highest concentration in the extracellular fluid are A) sodium, chloride, and bicarbonate. B) sodium, potassium, and bicarbonate. C) sodium, potassium, and calcium. D) sodium, hydrogen, and chloride. E) sodium, potassium, and phosphate. Answer A 13) Which hormone plays a central role in determining the rate of sodium reabsorption and potassium secretion? A) ADH B) aldosterone C) BNP D) ANP
E) epinephrine Answer B 14) Which hormone most affects the osmolarity of blood? A) ADH B) angiotensin II C) PTH D) ANP E) epinephrine Answer A 15) Which hormone(s) is released by heart muscle in response to excessive chamber volume? A) ADH B) aldosterone C) PTH D) acetylcholine E) natriuretic peptides Answer E 16) Approximately ________ liters of peritoneal fluid are produced and reabsorbed each day. A) 10
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