PRINCIPLES OF ANATOMY+PHYSIOLOGY
16th Edition
ISBN: 9781119821823
Author: Tortora
Publisher: WILEY C
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 26, Problem 17CP
Summary Introduction
To review:
Diagrammatic representation of reabsorption of solutes through the paracellular and transcellular routes. Also, label basolateral and apical membrane and determine sodium-potassium (Na+-K+ ATPases or adenosine triphosphatases) pump's location.
Introduction:
Any substance that is reabsorbed from tubular fluid present in lumen enters a peritubular capillary by two routes. The routes include movement between neighboring tubule cells or via an individual tubule cell.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Explain the role of renin-angiotensin - aldosterone pathway in restoring blood pressure and fluid balance. Include the stimulus for release, the pathway that is involved, and the physiological effects of angiotensin II and aldosterone.
Answer should include:
Identify stimulus/change that starts the pathway (i.e. Identify the direction of change IN BP or circulating fluid status)
What happens in the juxtaglomerular cells? Clue: what stimulus causes the release of renin?
Explain action of renin - what protein does it act on? What is it converted to?
Which enzymes converts angiotensin 1 to angiotensin 2?
What are the actions of angiotensin 2? Clue: stimulates adrenal context to produce what? And what effect does angiotensin 2 have on blood vessels?
What causes reabsorption of Na into blood ?
What effect does this have on blood volume?
How is BP restored ? Explain how this relates to equation for BP ( BP= CO x TPR)
Diuretics cause sodium excretion. Sodium follows water. Therefore, diuretics lead to a reduction in volume (remember BP = heart rate x volume x blood vessel tone (SVR)). Since diuretics lower volume, they lower BP. When would diuretics be indicated? When would they be contraindicated?
Describe how tubular reabsorption processes nutrientand salt molecules.
Chapter 26 Solutions
PRINCIPLES OF ANATOMY+PHYSIOLOGY
Ch. 26 - Explain the role of each organ of the urinary...Ch. 26 - 2. What are examples of wastes that may be present...Ch. 26 - 3. Describe the location of the kidneys. Why are...Ch. 26 - 4. Identify the three layers that surround the...Ch. 26 - Prob. 5CPCh. 26 - Prob. 6CPCh. 26 - Prob. 7CPCh. 26 - Prob. 8CPCh. 26 - Prob. 9CPCh. 26 - 10. Where is the juxtaglomerular apparatus (JGA)...
Ch. 26 - How do tubular reabsorption and tubular secretion...Ch. 26 - Prob. 12CPCh. 26 - What is the major chemical difference between...Ch. 26 - Prob. 14CPCh. 26 - Prob. 15CPCh. 26 - How is glomerular filtration rate regulated?Ch. 26 - Prob. 17CPCh. 26 - Describe two mechanisms in the PCT, one in the...Ch. 26 - 19. How do intercalated cells secrete hydrogen...Ch. 26 - Graph the percentages of filtered water and...Ch. 26 - 21. How do symporters in the ascending limb of the...Ch. 26 - 22. How does ADH regulate facultative water...Ch. 26 - Prob. 23CPCh. 26 - What are the characteristics of normal urine?Ch. 26 - Prob. 25CPCh. 26 - How may kidney function be evaluated?Ch. 26 - Prob. 27CPCh. 26 - What forces help propel urine from the renal...Ch. 26 - What is micturition? How does the micturition...Ch. 26 - 30. How do the location, length, and histology of...Ch. 26 - Prob. 31CPCh. 26 - Prob. 32CPCh. 26 - Which tissue gives rise to collecting ducts,...Ch. 26 - 34. To what extent do kidney mass and filtration...Ch. 26 - Prob. 1CTQCh. 26 - For each of the following urinalysis results,...Ch. 26 - Prob. 3CTQ
Knowledge Booster
Learn more about
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
- A urinalysis reveals that the patients urine contains glucose, hemoglobin, and white blood cells (pus). Are any of these substances abnormal in urine? Explain.arrow_forwardContrast the mechanism of reabsorption for glucose and urea. Which one shows a Tm, and why?arrow_forwardDescribe the effect of sodium reabsorption on the reabsorption of negatively charged ions.arrow_forward
- Diagram/flow chart the reactions and interactions of the renin-angiotensin-aldosterone pathway. What conditiion is the primary stimulus for its activation? What would hapen to renin secretion in a patient with chronic kidney failure?arrow_forwardThe 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.arrow_forwardDescribe how each of the following works to regulate reabsorption and secretion, so as to affect urine volume and composition: renin-angiotensin system, aldosterone and antidiuretic hormone.arrow_forward
- Explain the role of thr kidneys in maintaining blood volume ,blood ph and osmolality and why this is important for health.arrow_forwardWhich type of nephron (juxtamedullary or cortical) does this setup appear to approximate? Hint: pay attention to mOsm Alcohol blocks ADH. What affect would this have on the volumes and concentrations of urine, tubular, and interstitial fluid?arrow_forwardExplain the reabsorption of nutrients such as glucose.arrow_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_forwardDescribe the importance of tubular secretion and list several substances that are secreted.arrow_forwardDecreased renal blood flow Sympathetic input Angiotensinogen Increased effective blood volume to correct initial stimulus to the system Increased sodium and water reabsorption by nephron collecting duct Renin released by juxtaglomerular cells of nephron cleaves angiotensinogen A) decreased renal blood flow B) increased renal blood flow C) sympathetic input D) angiotensin II negative feedback Stimulating variables: Nitric oxide from macula densa E) increased blood volume CAMP Diuretics Epinephrine Norepinephrine Early part of day Erect posture Hyponatremia Hyperkalem Fig. 17-17. The Feedback Mechanisms Regulating Aldosterone Secretion CAMP Cyclic adenosine monophosphate; ACTH, adrenocorticotropic hormone Copyright ©2008 by Mosby, Inc., an affliate of Elsevier Inc. (-) Angiotensin I TAldosterone levels Inhibiting variables: Adenosine from macula densa Angiotensin II Adrenergic blocking agents Aldosterone Angiotensin I-converting enzyme in lung Recumbent posture Later part of day P ACTH…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage LearningHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage LearningConcepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
TISSUE REPAIR Part 1: Repair - Regeneration; Author: ilovepathology;https://www.youtube.com/watch?v=t-5EjlS6qjk;License: Standard YouTube License, CC-BY