Fundamentals of Anatomy & Physiology Plus Mastering A&P with eText - Access Card Package (10th Edition) (New A&P Titles by Ric Martini and Judi Nath)
10th Edition
ISBN: 9780321908599
Author: Frederic H. Martini, Judi L. Nath, Edwin F. Bartholomew
Publisher: PEARSON
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Question
Chapter 26, Problem 23RQ
Summary Introduction
To determine:
The primary changes that occur in the composition and concentration of filtrate as a result of activity in the proximal convoluted tubules.
Concept introduction:
The process of filtration begins in the glomerular capsule and is driven by the hydrostatic pressure inside the glomerulus. The filtrate produced in the glomerular capsule is then passed through various structures of nephron where the essential substances are reabsorbed into the peritubular fluid while eliminating the non-essential substances in the urine.
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Describe the composition of filtrate that enters into the Proximal Convoluted Tubule immediately after Bowman’s capsule.
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Define distal convoluted tubule.
Chapter 26 Solutions
Fundamentals of Anatomy & Physiology Plus Mastering A&P with eText - Access Card Package (10th Edition) (New A&P Titles by Ric Martini and Judi Nath)
Ch. 26 - Prob. 1CPCh. 26 - Prob. 2CPCh. 26 - Prob. 3CPCh. 26 - Prob. 4CPCh. 26 - Prob. 5CPCh. 26 - Damage to which part of a nephron would interfere...Ch. 26 - Prob. 7CPCh. 26 - Prob. 9CPCh. 26 - List the factors that influence net filtration...Ch. 26 - Prob. 11CP
Ch. 26 - Prob. 12CPCh. 26 - Prob. 8CPCh. 26 - Prob. 13CPCh. 26 - Prob. 14CPCh. 26 - Prob. 16CPCh. 26 - Prob. 15CPCh. 26 - What effect would a high-protein diet have on the...Ch. 26 - Prob. 18CPCh. 26 - Prob. 19CPCh. 26 - Prob. 20CPCh. 26 - Define nephrolithiasis.Ch. 26 - Prob. 22CPCh. 26 - Prob. 23CPCh. 26 - Prob. 24CPCh. 26 - Prob. 1RQCh. 26 - The basic functional unit of the kidney is the (a)...Ch. 26 - The process of urine formation involves all of the...Ch. 26 - Prob. 4RQCh. 26 - The distal convoluted tubule is an important site...Ch. 26 - Prob. 6RQCh. 26 - Prob. 7RQCh. 26 - Prob. 8RQCh. 26 - Trace the pathway of the protein-free filtrate...Ch. 26 - Prob. 10RQCh. 26 - Prob. 11RQCh. 26 - Prob. 12RQCh. 26 - Prob. 13RQCh. 26 - What are the primary effects of angiotensin II on...Ch. 26 - Prob. 15RQCh. 26 - When the renal threshold for a substance exceeds...Ch. 26 - Prob. 17RQCh. 26 - Prob. 18RQCh. 26 - When ADH levels rise, (a) the amount of water...Ch. 26 - The control of blood pH by the kidneys during...Ch. 26 - Prob. 21RQCh. 26 - Prob. 22RQCh. 26 - Prob. 23RQCh. 26 - Prob. 24RQCh. 26 - Prob. 25RQCh. 26 - Prob. 26RQCh. 26 - In response to excess water in the body, (a)...Ch. 26 - Prob. 28RQCh. 26 - Prob. 29RQCh. 26 - What effect would drinking a solution of mannitol...Ch. 26 - The drug Diamox is sometimes used to treat...Ch. 26 - Prob. 1CCCh. 26 - What will likely happen to the glomerular...
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- Why is excretion important in order to achieve osmotic balance?arrow_forwardThe process of hydrogen ion secretion in the proximal convoluted tubule occurs via which of the following mechanisms? Choose from the following: (A) hydrogen ions diffuse out of the glomerular filtrate of the proximal convoluted tubule, through extracellular fluid and into the peritubular blood (B) carbon dioxide diffuses into the proximal convoluted tubule cell from peritubular capillary blood; undergoes a chemical reaction to form carbonic acid; dissociates into hydrogen and bicarbonate ions; the hydrogen ion diffuses into the glomerular filtrate of the proximal convoluted tubule (C) hydrogen ions diffuse out of the peritubular capillary blood, through extracellular fluid and into the filtrate of the proximal convoluted tubule (D) carbon dioxide diffuses into the proximal convoluted tubule cell from the glomerular filtrate; undergoes a chemical reacdtion to form carbonic acid; dissociates into hydrogen and bicarbonate ions; the hydrogen ions diffuse into the peritubular bloodarrow_forwardExplain the mechanisms of Na+ reabsorption in the proximal, ascending limb and distal convoluted tubule. Explain the importance of the Na+/K+ ATPase pump in the process of Na+ and water reabsorptionarrow_forward
- Briefly explain the role of the proximal convoluted tubulearrow_forward1) What substances are reabsorbed from the tubules by active reabsorption and what substances by diffusion? 2) What substances are actively secreted by the tubules, and in what parts of the tubules are these substances secreted?arrow_forwardWhich of the following substances does NOT appear in normal filtrate within the distal convoluted tubule? Question options: A) Sodium ions C) Water D) Glucosearrow_forward
- List and describe the three filtration barriers that substances leaving the plasma must pass through before entering the tubule lumen.arrow_forwardWhy are proteins said to be transported rather than simply reabsorbed in the proximal convoluted tubule?arrow_forwardExplain how epithelial cells of the proximal convoluted tubule are adapted for reabsorption.arrow_forward
- How is glucose reabsorbed across the two membranes of the tubule cells?arrow_forwardDrugs that increase urine flow (diuretic drugs) are often employed in the treatment of hypertension (high blood pressure) or other disease states. Three physiological categories of such drugs are ones that (i) function as loop diuretics, (ii) inhibit the action of aldosterone, and (iii) block Na+ channels in the collecting ducts. Explain why each of these categories would be expected to increase Na+ excretion and urine flow.arrow_forwardWhat is the exact location of proximal convoluted tubule.arrow_forward
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