Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 49, Problem 7TY
Summary Introduction
Introduction: The urinary system is a part of the excretory system in mammals. The urinary system is composed of ureters, kidneys, the urethra and the urinary bladder. Urea is excreted from the body of mammals through urine.
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All of the following statements about Juxtamedullary nephrons are correct EXCEPT
their glomeruli lie in the renal medulla.
a.
b.
are important in the ability of the kidneys to concentrate urine.
C.
Their loops of Henle dip deep into the medulla.
d.
they are not the predominant type of nephron found in human kidneys.
Vasa recta.surround the tubule of the nephron.
e.
Which of the following statements about the kidney is false? a. The renal pelvis drains into the ureter. b. The renal pyramids are in the medulla. c. The cortex covers the capsule. d. Nephrons are in the renal cortex.
I. It is the microscopic structural and filtering unit of the kidney.
A. Renal Cortex
B. Loop of Henle
C. Nephrons
D. Renal Corpuscle
Ii. It refers to the process of elimination of metabolic waste products from an animal's body.
A. Filtration
B. Excretion
C. Osmoregulation
D. Reabsorption
Iii. It is also known as the papillary duct, which receives fluid from the nephrons.
A. Collecting Duct
B. Renal Pyramid
C. Distal Convoluted Tubule (DCT)
D. Proximal Convoluted Tubule (PCT)
Iv. The nephrons are located deep within which part of the kidney?
A. Ureter
B. Cortex of the Kidney
C. Adrenal Gland
D. Renal Pelvis
Chapter 49 Solutions
Biology
Ch. 49.1 - Prob. 1CCCh. 49.2 - Core Skill: Connections In what other organ is a...Ch. 49.2 - Prob. 2CSCh. 49.2 - Prob. 3CSCh. 49.3 - Prob. 1CSCh. 49 - Prob. 1TYCh. 49 - Prob. 2TYCh. 49 - Prob. 3TYCh. 49 - Prob. 4TYCh. 49 - Prob. 5TY
Ch. 49 - Prob. 6TYCh. 49 - Prob. 7TYCh. 49 - Prob. 8TYCh. 49 - Prob. 9TYCh. 49 - Prob. 10TYCh. 49 - Define nitrogenous waste, and list the main types...Ch. 49 - List and describe the three processes involved in...Ch. 49 - Prob. 3CQCh. 49 - Prob. 1COQCh. 49 - Briefly discuss the parts and functions of the...
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- 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_forwardWhich 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_forwardWhich of these processes is responsible for kidney function?a. filtration c. reabsorption e. All of these are correct.b. secretion d. Both a and b are correct.arrow_forward
- Correctly trace the movement of urine from the kidneys out of the body. a. Urethra – kidney – ureter – bladder b. Kidney – ureter – bladder – urethra c. Testis – vas deferens – epididymis - ureter d. Testis – epididymis – vas deferens – urethraarrow_forwardWhen a substance is reabsorbed in the kidney that substance is: A. Removed from the blood and put into the renal tubule B. Removed from the renal tubule and put into the blood C. Removed from the body via urine. D. Both B & Carrow_forwardWhich of the following is/are true concerning kidney structure? a. The 'hilum' is the concave part of the kidney through which everything entering or leaving the kidney goes b. The kidney is surrounded by a thin connective tissue capsule c. Urine collects in the renal sinus d. The renal medulla contains the renal corpuscles e. Each kidney contains about a million nephronsarrow_forward
- which of the following correctly shows the order in which the filtrate moves through the structures of the nephron? a. proximal tubule - distal tubule - collecting duct - loop of Henle b. collecting duct - loop of Henle - proximal tubule - distal tubule c. distal tubule - loop of Henle - proximal tubule - collecting duct d. proximal tubule - loop of Henle - distal tubule - collecting ductarrow_forwardThe macula densa is/are: a. present in the renal medulla. b. dense tissue present in the outer layer of the kidney. c. cells present in the DCT and collecting tubules. d. present in blood capillaries.arrow_forwardGlomerular Filtration Rate (GFR) can be regulated by individual nephrons..which of the following represent the structures that play a role in this "Tubulo-Glomerular Feedback" mechanism? 45. ies, that A. The Corpus-Callosum and the Macula Densa. B. The Juxta-Glomerular Apparatus C. The Supra-Bowmanic Recipricator D. The Osmotic Filament Feedback Modulearrow_forward
- and the process of Urine formation begins at the moving "plasma" into the renal tubules is called,, A. Collecting duct : reabsorption B. Glomerulus: reabsorption C. Glomerulus : filtration D. Juxtaglomerular Apparatus : secretionarrow_forwardWhich of following is not a function of kidneys? a. Maintain volume, pH and composition of body luids b. Remove excess toxic chemicals c. Remove metabolic wastes d. Synthesis of angiotensinogenarrow_forwardBowman’s capsule, the start of the tubular part of a nephron, is located in the_______ . a. renal cortex c. renal pelvis b. renal medulla d. renal arteryarrow_forward
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