Human Physiology: An Integrated Approach (8th Edition)
8th Edition
ISBN: 9780134605197
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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Textbook Question
Chapter 19, Problem 17RQ
What are the advantages of a kidney that filters a large volume of fluid and then reabsorbs 99% of it?
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It is possible to survive with 1 kidney, why do we have 2 of them? A major function is to filter and eliminate waste, why are they located so far from the urinary bladder?
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The renal handling of a novel drug is being studied. When the drug is present in the blood, it is filtered into the Bowman’s capsule and secreted via transport proteins in the renal tubules, but it is NOT reabsorbed. The lines on the following graph represent filtration, secretion and excretion rates of this drug at various plasma concentrations.
For the three lines shown (labeled A-C) identify which line represents filtration, which line represents secretion, and which line represents excretion
Explain how you determined this.
Which of the following pathways best describe the structures which urine has to flow through before being excreted out of the body? (Hint: some structures may be omitted, so just make sure the general order is correct)
1-Collecting duct -> bladder -> ureter
2-Collecting duct -> ureter -> bladder -> urethra
3-Collecting duct -> urethra -> bladder -> ureter
4-Major calyx -> minor calyx -> renal pelvis -> urethra
Chapter 19 Solutions
Human Physiology: An Integrated Approach (8th Edition)
Ch. 19.1 - Ion regulation is a key feature of kidney...Ch. 19.1 - What happens to the force of cardiac contraction...Ch. 19.2 - If net filtration out of glomerular capillaries...Ch. 19.2 - If net reabsorption into peritubular capillaries...Ch. 19.3 - Name one way in which filtration and secretion are...Ch. 19.3 - A water molecule enters the renal corpuscle from...Ch. 19.3 - Prob. 7CCCh. 19.4 - Why is the osmotic pressure of plasma in efferent...Ch. 19.4 - If a hypertensive persons blood pressure is...Ch. 19.4 - If systemic blood pressure remains constant but...
Ch. 19.4 - A person with cirrhosis of the liver has...Ch. 19.7 - If plasma creatinine = 1.8 mg/100 mL plasma, urine...Ch. 19 - List and explain the significance of the five...Ch. 19 - List and explain the six major kidney functions.Ch. 19 - At any given time, what percentage of cardiac...Ch. 19 - Prob. 4RQCh. 19 - Arrange the following structures in the order that...Ch. 19 - Name the three filtration barriers that solutes...Ch. 19 - Prob. 7RQCh. 19 - What does the abbreviation GFR stand for? What is...Ch. 19 - Identify the following structures, then explain...Ch. 19 - In which segment of the nephron does most...Ch. 19 - Match each of the following substances with its...Ch. 19 - Prob. 12RQCh. 19 - Prob. 13RQCh. 19 - Prob. 14RQCh. 19 - Map the following terms. You may add terms if you...Ch. 19 - Define, compare, and contrast the items in the...Ch. 19 - What are the advantages of a kidney that filters a...Ch. 19 - Prob. 18RQCh. 19 - Diagram the micturition reflex. How is this reflex...Ch. 19 - Antimuscarinic drugs are the accepted treatment...Ch. 19 - Draw a section of renal tubule epithelium showing...Ch. 19 - Prob. 22RQCh. 19 - Read the box on hemodialysis on p. 603 and see if...Ch. 19 - Graphing question: You are given a chemical Z and...Ch. 19 - Prob. 25RQCh. 19 - Prob. 26RQCh. 19 - Dwight was competing for a spot on the Olympic...Ch. 19 - You are a physiologist taking part in an...Ch. 19 - If 140 liters of plasma are filtered in a day, and...
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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
- Which of the following does not contribute to the high salt concentration in the interstitial fluid of the kidney medulla? (a) active transport of sodium from the upper part of the ascending limb (b) diffusion of salt from the ascending limb of the loop of Henle (c) reabsorption of salt from various regions of Bowmans capsule (d) counterflow of fluid through the two limbs of the loop of Henle (e) diffusion of urea out of the collecting ductarrow_forwardWhat are the two means by which the kidney helps to regulate blood pressure?arrow_forwardGlomerular filtration is affected by forces that oppose and promote filtration. What are these forces and explain the theory behind net filtration pressure?arrow_forward
- The filtration units of kidneys are called: a) Ureterb) Urethrac) Neuronsd) nephrons.arrow_forwardWhich step(s) in the process of urine formation occur in the renal tubule? A) Filtration, secretion, and reabsorption B) Reabsorption only C) Secretion only D) Secretion and reabsorption only E) Filtration onlyarrow_forwardWhich of the following correctly describes the path of fluid flow in the kidney? a) Minor calyx; Major calyx; Nephron: Collecting duct b) Collecting duct; Nephron; Major Calyx; Minor Calyx Od Nephron; Collecting duct; Minor Calyx: Major Calyx d) Nephron; Minor Calyx; Collecting duct; Major calyxarrow_forward
- Draw a schematic diagram showing the flow of water and salts in the proximal tubule of the kidney. In this diagram, put the lumen on the left side of the diagram and the extracellular fluids on the right side of the diagram. Indicate where the lumen is, where the extracellular fluid is, where the apical portion of the cell is, and show the location of the proteins that are responsible for the movement of water and salts and glucose reabsorption in this area of the kidneyarrow_forwardThe fluid in the glomerular capsular space is similar to plasma except that it contains fewer Question options: A) Sugars (glucose) C) Salts 田 D) Proteins O Focusarrow_forwardWhich of the following statements is false regarding the filtration that takes place in the kidneys? a) About 20% of the total plasma volume is filtered into the lumen of Bowman's capsule. b) Glomerular filtration rate (GFR): indicates how fast blood plasma is filtered through the glomeruli of the kidney c) It is primarily the systemic blood pressure that determines how much urine you produce. d) The filtrate consists of water, smaller molecules and ions that can cross the filter barrierarrow_forward
- What is an example of a diagram that explains the core concept of flow down gradients in the urinary system/kidneys?arrow_forwardThe largest possible amount of a substance that can be reabsorbed or secreted across a kidney tubule wall in a given duration of time is known as the a.) transport maximum. b.) renal clearance exponent. c.) glomerular filtration rate. d.) net filtration pressure. e.) renal thresholdarrow_forwardWhich of the following is not associated with the renal corpuscle? Question options: a) glomerular capillary b) fenestrated capillary c) peritubular capillary d) efferent arteriolearrow_forward
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