HUMAN PHYSIOLOGY: AN INTEG ACCESS C
8th Edition
ISBN: 9780134714837
Author: Silverthorn
Publisher: PEARSON
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Chapter 20.2, Problem 3CC
A scientist monitoring the activity of osmoreceptors notices that infusion of hyperosmotic saline (NaCl) causes increased firing of the osmoreceptors. Infusion of hyperosmotic urea (a penetrating solute) [p. 127] had no effect on the firing rate. If osmoreceptors fire only when cell volume decreases, explain why hyperosmotic urea did not affect them.
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Chapter 20 Solutions
HUMAN PHYSIOLOGY: AN INTEG ACCESS C
Ch. 20.2 - Does the apical membrane of a collecting duct cell...Ch. 20.2 - Prob. 2CCCh. 20.2 - A scientist monitoring the activity of...Ch. 20.2 - If vasopressin increases water reabsorption by the...Ch. 20.2 - Experiments suggest that there are peripheral...Ch. 20.2 - Prob. 6CCCh. 20.2 - Prob. 7CCCh. 20.3 - In Figure 20.9b, what forces cause Na+ and K+ to...Ch. 20.3 - Prob. 9CCCh. 20.3 - Laboratory values for ions may be reported as...
Ch. 20.3 - A man comes to the doctor with high blood...Ch. 20.3 - Map the pathways through which elevated renin...Ch. 20.3 - Why is it more efficient to put ACE in the...Ch. 20.5 - Incorporate the thirst reflex into Figure 20.8.Ch. 20.6 - Map the pathway that begins with renal artery...Ch. 20.7 - CO2+H2OH++HCO3(6) In equation 6, the amount of...Ch. 20.7 - Why is ATP required for H+ secretion by the H+-K+...Ch. 20.7 - In hypokalemia, the intercalated cells of the...Ch. 20 - What is an electrolyte? Name five electrolytes...Ch. 20 - Prob. 2RQCh. 20 - Prob. 3RQCh. 20 - List the receptors that regulate osmolarity, blood...Ch. 20 - How do the two limbs of the loop of Henle differ...Ch. 20 - Prob. 6RQCh. 20 - Prob. 7RQCh. 20 - Prob. 8RQCh. 20 - Write out the words for the following...Ch. 20 - Prob. 10RQCh. 20 - Prob. 11RQCh. 20 - Prob. 12RQCh. 20 - Prob. 13RQCh. 20 - Prob. 14RQCh. 20 - Prob. 15RQCh. 20 - When ventilation increases, what happens to...Ch. 20 - Prob. 17RQCh. 20 - Figures 20.15 and 20.18a show the respiratory and...Ch. 20 - Explain how the loop of Henle and vasa recta work...Ch. 20 - Prob. 20RQCh. 20 - Prob. 21RQCh. 20 - Name the four main compensatory mechanisms for...Ch. 20 - Prob. 23RQCh. 20 - Compare and contrast the terms in each set: a....Ch. 20 - Prob. 25RQCh. 20 - Prob. 26RQCh. 20 - Prob. 27RQCh. 20 - Hannah, a 31-year-old woman, decided to have...Ch. 20 - Prob. 29RQCh. 20 - Prob. 30RQCh. 20 - The Henderson-Hasselbalch equation is a...Ch. 20 - Hyperglycemia in a diabetic patient leads to...Ch. 20 - Osmotic diuresis refers to the loss of additional...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- What is the major mechanism that results in acclimatization?arrow_forwardThe kidneys are stimulated to produce renin Question options: a) when the sympathetic nervous system is activated b) by an increase in the blood pressure when the pH of the urine decreases e)arrow_forwardWhat does an increase in permeability mean for the movement of ions?arrow_forward
- What does saturation refer to?arrow_forwardwhat is the sodium/potassium exchange pump?arrow_forwarda. A person ingests an ion-channel inhibitor, such that the ion channels present in the Loop of Henle are only able to pump at half their normal rate? b. What would this person notice about changes to their physiological filtration? (Answer a and b)arrow_forward
- A person in liver failure is deficient in large proteins usually found in the plasma. Whatwill happen to fluid in the extracellular space (interstitial space)? Why? How will thisaffect the appearance of the patient?arrow_forwardSeverely malnourished individuals, depleted of proteins and other solutes in their plasma, experience extreme edema which can result in the appearance of distended abdomens. The following is a graph of the typical blood and osmotic pressures in the capillaries of a healthy, well-nourished individual. A. Which graph (A-D) most closely resembles how the pressures might change in a malnourished person to result in the initial appearance of edema. B. Briefly explain how this pressure change results in edema.arrow_forwardExplain how the sodium-potassium pump works to move ions.arrow_forward
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