ANAT.+PHYSIO.2-LAB.MAN. >CUSTOM<
20th Edition
ISBN: 9781264303090
Author: VanPutte
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 26, Problem 10RAC
Summary Introduction
Introduction:
A nephron is the histological and functional unit of the kidney. It is a tube-like structure with enlarged terminal ends. It includes Bowman’s capsule, proximal tubules, a loop of Henle and distal tubules. It plays a pivotal role in several homeostatic processes including the reabsorption of sodium chloride and potassium secretion.
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When arterial blood pressure drops below normal, which renal function occur as a result of sympathetic nervous system activation?
a. Afferent arteriole vasodilation
b. Decreased ADH secretion
c. Decreased renin secretion
d. Afferent arteriole vasoconstriction
Glomerular filtration can be increased by which of the following?
A. Increasing blood flow via afferent arteriole
B. Decreasing blood flow via afferent arteriole
C. Decreasing arterial blood pressure
D. Increasing blood flow via efferent arteriole
The answer is (A) Increasing blood flow via afferent arteriole. Please explain why it is not the other options (B,C,D)
Which of these conditions reduces filtration pressure in theglomerulus?a. elevated blood pressureb. constriction of the afferent arteriolesc. decreased plasma protein in the glomerulusd. dilation of the afferent arteriolese. decreased capsular hydrostatic pressure
Chapter 26 Solutions
ANAT.+PHYSIO.2-LAB.MAN. >CUSTOM<
Ch. 26.1 - Name the organs that make up the urinary system.Ch. 26.1 - List the functions performed by the kidneys, and...Ch. 26.2 - Describe the location, Size, and shown of the...Ch. 26.2 - Describe the renal capsule and the structures that...Ch. 26.2 - List the structures found at the hilum and in the...Ch. 26.2 - What is the functional unit of the kidney? Name...Ch. 26.2 - Distinguish between cortical and juxtamedullary...Ch. 26.2 - List the components of a renal corpuscle.Ch. 26.2 - Describe the structure of the Bowman capsule, the...Ch. 26.2 - Describe the structure of the afferent and...
Ch. 26.2 - Describe the structure and location of the...Ch. 26.2 - Explain blood supply for the kidney.Ch. 26.3 - Name the three general processes involved in...Ch. 26.3 - Contrast the rates of renal blood flow, renal...Ch. 26.3 - Prob. 15AYPCh. 26.3 - What is filtration pressure? How does glomerular...Ch. 26.3 - How do systemic blood pressure and afferent...Ch. 26.3 - Describe autoregulation.Ch. 26.3 - Prob. 19AYPCh. 26.3 - What is the direction of movement of substances in...Ch. 26.3 - Describe what happens to most of the filtrate that...Ch. 26.3 - On what side of therenal tubule cell does active...Ch. 26.3 - Describe how symportworks in the renal tubule.Ch. 26.3 - Name the substances that are moved by active and...Ch. 26.3 - Prob. 25AYPCh. 26.3 - Where does tubular secretion take place? What is...Ch. 26.3 - What substances are secreted? List the mechanisms...Ch. 26.3 - List the major mechanisms that create and maintain...Ch. 26.3 - Describe the roles of the loop of Henle, the vasa...Ch. 26.3 - Describe how the filtrate volume and concentration...Ch. 26.4 - Prob. 31AYPCh. 26.4 - How is angiotensinII activated? What effects does...Ch. 26.4 - Where is aldosterone produced? What factors...Ch. 26.4 - What are the effects of aldosterone on Na+ and CI+...Ch. 26.4 - Where is ADH produced? What factors stimulate an...Ch. 26.4 - How does ADH affect urine volume and...Ch. 26.4 - Describe how the presence of ADH causes the...Ch. 26.4 - How does the absence of ADH cause the production...Ch. 26.4 - Where is atrial natriuretic hormone produced,and...Ch. 26.5 - What is plasma clearance, and how is it...Ch. 26.5 - Prob. 41AYPCh. 26.5 - Describe how PAH is used to determine renal plasma...Ch. 26.5 - Explain the significance of tubular load and...Ch. 26.6 - What are the functions of the ureters, urinary...Ch. 26.6 - Prob. 45AYPCh. 26.6 - Prob. 46AYPCh. 26.6 - Prob. 47AYPCh. 26.6 - Prob. 48AYPCh. 26.7 - Discuss the effect of aging on the kidneys. Why do...Ch. 26 - Prob. 1RACCh. 26 - Prob. 2RACCh. 26 - Prob. 3RACCh. 26 - Prob. 4RACCh. 26 - Prob. 5RACCh. 26 - Prob. 6RACCh. 26 - Prob. 7RACCh. 26 - Prob. 8RACCh. 26 - If the glomerular capillary pressure is 40 mm Hg,...Ch. 26 - Prob. 10RACCh. 26 - Prob. 11RACCh. 26 - Prob. 12RACCh. 26 - Prob. 13RACCh. 26 - Prob. 14RACCh. 26 - Prob. 15RACCh. 26 - Prob. 16RACCh. 26 - Prob. 17RACCh. 26 - Which of the following contributes to the...Ch. 26 - Prob. 19RACCh. 26 - Prob. 20RACCh. 26 - Prob. 21RACCh. 26 - Prob. 22RACCh. 26 - ADH governs the a. Na+ pump of proximal convoluted...Ch. 26 - Prob. 24RACCh. 26 - The amount of a substance that passes through the...Ch. 26 - Prob. 26RACCh. 26 - Prob. 1CTCh. 26 - Harry is doing yard work one hot summer day and...Ch. 26 - Prob. 3CTCh. 26 - Prob. 4CTCh. 26 - Design a kidney that can produce hypostatic urine,...Ch. 26 - If only a very small amount of urea, instead of...Ch. 26 - Prob. 7CTCh. 26 - Marvin was driving too fast on a remote mountain...Ch. 26 - Which of the following will help compensate for...Ch. 26 - Renin-secreting tumors are usually found in the...Ch. 26 - Prob. 11CT
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Similar questions
- Which of the following does not contribute to the process of filtration? (a) active transport by epithelial cells lining renal tubules (b) large surface area for filtration (c) low permeability of glomerular capillaries (d) high hydrostatic blood pressure in glomerular capillaries (e) podocytesarrow_forwardBlood pressure forces water and small solutes out of blood and into nephrons during ________. a. glomerular filtration c. tubular secretion b. tubular reabsorption d. both a and carrow_forwardThe afferent arteriole delivers blood to the (a) renal artery (b) efferent arteriole (c) renal vein (d) capillaries of the glomerulus (e) peritubular capillariesarrow_forward
- Which of the abnormal constituents of urine is considered nornla in trace amounts? a. glucose b. casts c. bilirubin d. urobilinogenarrow_forwardWhich of the following will decrease filtration at the glomerulus? ( check all that apply) A. Low colloid osmotic pressure B. Low capsular pressure C. A relatively large diameter of theefferent arterioles compared to theafferent arteriole. D. Increased number of podocytes at theglomerulusarrow_forwardConstriction of the efferent arteriole of the renal corpuscle will cause ________________ to rise. A. Glomerular Osmotic Pressure B. Glomerular Hydrostatic Pressure C. Capsular Osmotic Pressure D. Capular Hydrostatic Pressurearrow_forward
- Which of the following is NOT a component of the glomerular filtration barrier? a. Endothelial cells b. Lamina Densa c. Lamina Reticularis d. Lamina Rara e. Podocytesarrow_forwardWhich force(s) involved in glomerular filtration oppose(s) filtration from the glomerulus into Bowman's capsule? A. plasma osmotic pressure (especially of non-filterable plasma proteins) B. glomerular capillary blood pressure C. Bowman's capsule hydrostatic pressure D. Both of answer choices A and B (but not C) correctly answer the question. E. Both of answer choices A and C (but not B) correctly answer the question.arrow_forwardWhich direction of movement correctly describes how the term "reabsorption" functions in the nephron? A. from the capillaries of the vasa recta into the renal tubule lumen B. from the collecting duct into the ureter C. from the renal artery into the collecting duct D. from the renal tubule lumen into the surrounding interstitial fluid E. from the afferent arteriole into the glomerulusarrow_forward
- Which is true about the juxtaglomerular cells? (circle all that apply)a. Sercete angiotensinogen b. Modified smooth muscle cell of the afferent arteriole c. Modified epithelial cells of ascending limb nephron loopd. Secrete reinarrow_forwardWhich of the following would reduce the glomerular filtration rate? Select one: a. Vasodilation of the afferent arteriole b. An increase in osmotic pressure in the Bowman capsule c. A drop in colloid osmotic pressure d. Vasoconstriction of the afferent arteriole e. Vasoconstriction of the efferent arteriolearrow_forwardWhich of the following willdecrease filtration at theglomerulus? A. Increased number ofpodocytes at the glomerulus B. A relatively largediameter of the efferentarteriolescompared to the afferentarteriole. C. Low colloid osmoticpressure D. Low capsular pressurearrow_forward
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