Human Physiology
15th Edition
ISBN: 9781259864629
Author: Fox, Stuart Ira
Publisher: Mcgraw-hill Education,
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Textbook Question
Chapter 6, Problem 5RA
Blood plasma has an osmolality of about 300 mOsm. The osmolality of isotonic saline is equal to
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Water and electrolytes enclosed by cell membranes constitute the .a. transcellular fluidb. intracellular fluidc. extracellular fluidd. lymph
Intracellular fluids have high concentrations of ______
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B. bicarbonate
C. sodium and chloride.
D. sodium and phosphate.
E. chloride and potassium.
F. potassium and phosphate.
Which of the following depend (s) on the presence of electrolytes?
a. membrane polarity
b. neuromuscular excitability
c. maintenance of osmotic relations between cells and ECF
d. blood glucose levels
Chapter 6 Solutions
Human Physiology
Ch. 6 - Describe the distribution of fluid in the body.Ch. 6 - Describe the composition of the extracellular...Ch. 6 - List the subcategories of passive transport and...Ch. 6 - Explain what is meant by simple diffusion and list...Ch. 6 - Prob. 4CPCh. 6 - Prob. 5CPCh. 6 - Explain how the body detects changes in the...Ch. 6 - Prob. 7aCPCh. 6 - Prob. 7bCPCh. 6 - Prob. 7cCP
Ch. 6 - Prob. 8CPCh. 6 - Prob. 9aCPCh. 6 - Prob. 9bCPCh. 6 - Explain the relationship of the resting membrane...Ch. 6 - Prob. 10bCPCh. 6 - Prob. 11CPCh. 6 - Prob. 12CPCh. 6 - The movement of water across a plasma membrane...Ch. 6 - Which of these statements about the facilitated...Ch. 6 - Prob. 3RACh. 6 - Prob. 4RACh. 6 - Blood plasma has an osmolality of about 300 mOsm....Ch. 6 - Prob. 6RACh. 6 - The most important diffusible ion in the...Ch. 6 - Prob. 8RACh. 6 - Prob. 9RACh. 6 - Prob. 10RACh. 6 - Prob. 11RACh. 6 - Prob. 12RACh. 6 - Prob. 13RACh. 6 - Prob. 14RACh. 6 - Which of the following questions regarding second...Ch. 6 - Prob. 16RACh. 6 - Prob. 17RACh. 6 - Compare the resting membrane potential of a neuron...Ch. 6 - Prob. 19RACh. 6 - Prob. 20RACh. 6 - Prob. 21RACh. 6 - Prob. 22RACh. 6 - Using the principles of osmosis, explain why...Ch. 6 - Prob. 24RACh. 6 - Prob. 25RACh. 6 - Prob. 26RACh. 6 - Prob. 27RACh. 6 - Prob. 28RACh. 6 - Prob. 29RACh. 6 - Prob. 30RACh. 6 - Using only the information in this chapter,...Ch. 6 - Prob. 32RACh. 6 - Prob. 33RACh. 6 - Suppose a semipermeable membrane separates two...Ch. 6 - Prob. 35RACh. 6 - Prob. 36RACh. 6 - Use the Nernst equation and the ion concentration...
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- What are major factors that determine blood osmolality? The osmolality of 0.9% NaCl is ___________. How is the osmolality different from the molarity? Also, predict the effect of 1 L of 600 mOsm/L infusion of sucrose on patients RBC’s osmolality and volume, if previous osmolality of RBC’s was 250 mOsm/L, plasma volume – 3.6 L and RBC’s volume – 2.4 L.arrow_forwarda 32 year old man who weighs 70kg has a plasma osmolality of 300 mOsmol/kg . He is given 4 L of electrolyte -free water ( 5% dextrose water) intravenously . Assuming no urine excretion , how is this water expected to affect his extracellular fluid volume ? a- 2.7 L decrease . b. no change c. 1.3 L increase d. 2.7 L increase e. 4 L decreasearrow_forwardWhich of these statements regarding an increase in blood osmolality is true? a. It can occur as a result of dehydration. b. It causes a decrease in blood osmotic pressure. c. It is accompanied by a decrease in ADH secretion. d. All of these are true.arrow_forward
- You have a solution of 0.30 M glucose. Glucose is a non-penetrating molecule. If you place red blood cells into this solution predict what would happen to the red blood cells (stay same, crenated, lysed). Determine: 1. the osmolarity of 0.30 M glucose. Red blood cells are 0.3 Osmolar. 2. apperance/effect on RBC 3. tonicityarrow_forwardYou have a solution of 0.30 M urea. Urea is a penetrating molecule. If you place red blood cells into this solution predict what would happen to the red blood cells (stay same, crenated, lysed). Determine: 1. the osmolarity of 0.30 M urea. Red blood cells are 0.3 Osmolar. 2. apperance/effect on RBC 3. tonicityarrow_forwardBlood volume must be restored in a person who has lost large amounts of blood due to serious injury. This is often accomplished by infusing isotonic NaCl solution into the blood. Why is this more effective than infusing an isoosmotic solution of a penetrating solute, such as urea?arrow_forward
- Blood plasma has an osmolarity of about Group of answer choices: 100 mOsm/L. 900 mOsm/L. 1200 mOsm/L. 300 mOsm/L. 30 mOsm/L.arrow_forwardThe sodium ion is at the highest concentration in: a. intracellular fluid b. extracellular fluid c. blood plasma d. none of the abovearrow_forwardThe major role of this electrolyte is to maintain osmotic pressure in the extracellular fluid (ECF). a. HCO3– b. Ca2+ c. Na+ d. K+arrow_forward
- Some aquatic organisms, when confronted with a changing external osmotic environment, allow the internal (but extracellular) fluid osmotic pressure to follow, or to "match," the external osmotic pressure as it changes. This organism would be classified as a(an) ... A. hyporegulator. B. osmoconformer. C. osmomanipulator. D. hyperregulator. E. osmoregulator.arrow_forwardThe statement that the majority of sodium is contained outside cells tells us that: A. The amount of sodium in extracellular compartment is more than the intracellular one OB. The osmolarity is higher outside cells than inside cells O C. The volume of ECF is more than the ICF D. All of the abovearrow_forwardRegarding the extracellular fluid, which of the following statement is NOT TRUE? a.Concentration of sodium ions is higher. b.Concentration of potassium ions is higher. c.Extracellular fluid refers to the contents outside the cell. d.Extracellular fluid contributes towards the interstitial fluid. Clear my choicearrow_forward
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