Human Anatomy & Physiology (2nd Edition)
2nd Edition
ISBN: 9780134553511
Author: Erin C. Amerman
Publisher: PEARSON
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Question
Chapter 24, Problem 14CYR
Summary Introduction
To review:
The given blank space in the statement“The kidneys produce_____urine when the osmolarity of the body’s fluids increases. They produce_____ urine when osmolarity of the body’s fluids decreases.”
Introduction:
The filtrate that enters the renal tubule through the renal corpuscle is iso-osmotic. Its concentration is equal to the plasma concentration of 300 mOsm (milliosmolar). The osmolarity of the filtrate changes in the loop, mainly because of the reabsorption of water, sodium and chloride ions (Na+ and Cl-), and a significant portion of other ions. Reabsorption and secretion occur due to the differences in the permeability of the ascending and descending limbs of the loop.
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Fill in the blanks: The kidneys produce __________ urine when the osmolarity of the body’s fluids increases. They produce __________ urine when the osmolarity of the body’s fluids decreases.
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Chapter 24 Solutions
Human Anatomy & Physiology (2nd Edition)
Ch. 24.1 - What are the organs of the urinary system?Ch. 24.1 - 2. What are the basic functions of the kidneys?
Ch. 24.2 - Prob. 1QCCh. 24.2 - 2. What are the three regions of the kidney, and...Ch. 24.2 - Prob. 3QCCh. 24.2 - Trace the sequence of blood flow through the...Ch. 24.2 - Prob. 5QCCh. 24.2 - Prob. 6QCCh. 24.2 - Trace the pathway filtrate takes through the...Ch. 24.3 - Prob. 1QC
Ch. 24.3 - 2. How do tubular reabsorption and tubular...Ch. 24.4 - Prob. 1QCCh. 24.4 - Prob. 2QCCh. 24.4 - Prob. 3QCCh. 24.4 - 4. What is the GFR?
Ch. 24.4 - Prob. 5QCCh. 24.4 - Prob. 6QCCh. 24.4 - 7. How does tubuloglomerular feedback affect the...Ch. 24.4 - Prob. 8QCCh. 24.4 - Prob. 9QCCh. 24.4 - Prob. 10QCCh. 24.4 - How does the sympathetic nervous system affect the...Ch. 24.5 - Prob. 1QCCh. 24.5 - 2. What are the three types of transport...Ch. 24.5 - Prob. 3QCCh. 24.5 - What is obligatory water reabsorption?Ch. 24.5 - How do the permeabilities of the two limbs of the...Ch. 24.5 - Prob. 6QCCh. 24.5 - Prob. 7QCCh. 24.5 - Prob. 8QCCh. 24.6 - Prob. 1QCCh. 24.6 - Prob. 2QCCh. 24.6 - Prob. 3QCCh. 24.6 - Prob. 4QCCh. 24.6 - 5. What three factors allow the kidney to produce...Ch. 24.6 - 6. How is concentrated urine produced?
Ch. 24.8 - 1. What is the normal composition of urine?
Ch. 24.8 - Prob. 2QCCh. 24.8 - 3. What is renal clearance, and what is it used...Ch. 24.9 - Prob. 1QCCh. 24.9 - 2. What are the functions of the ureters and...Ch. 24.9 - Prob. 3QCCh. 24.9 - Prob. 4QCCh. 24.9 - Prob. 5QCCh. 24 - What are the four main organs of the urinary...Ch. 24 - 2. Which of the following is not a physiological...Ch. 24 - Mark the following statements as true or false. If...Ch. 24 - Prob. 4CYRCh. 24 - Prob. 5CYRCh. 24 - Which of the following substances would pass...Ch. 24 - Mark the following statements as true or false. If...Ch. 24 - Fill in the blanks for the following statements:...Ch. 24 - Which of the following is false about the GFR? a....Ch. 24 - The route by which substances are reabsorbed by...Ch. 24 - 11. Fill in the blanks: Glomerular hydrostatic...Ch. 24 - Dilute urine is produced when decreased levels of...Ch. 24 - Prob. 13CYRCh. 24 - Prob. 14CYRCh. 24 - Prob. 15CYRCh. 24 - 16. The GFR may be estimated by measuring the rate...Ch. 24 - Prob. 17CYRCh. 24 - Prob. 1CYUCh. 24 - Prob. 2CYUCh. 24 - Prob. 3CYUCh. 24 - Why must the kidneys establish a concentration...Ch. 24 - 1. Drugs that treat hypertension, or high blood...Ch. 24 - Prob. 2AYKACh. 24 - 3. Deana is a 4-year-old girl with a rare genetic...Ch. 24 - 4. Explain how each of the drugs in question 1...Ch. 24 - 5. What might it mean if you found a high...
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- In patients that suffer from diabetes insipidus, a urine sample would show which of the following? Check all that apply. Elevated protein High osmolarity High levels of glucose Blood cells * Low osmolarityarrow_forwardUnder ALL CONDITIONS of salt and water intake the kidneys must: A. Excrete more water than osmolytes by concentration only B. Excrete more water than osmolytes by amounts only OC. Excrete more water than osmolytes by amounts AND concentration OD. Excrete variable amounts of water that are sometimes less than amounts of osmolytesarrow_forwardThe breakdown of nucleic acids produces very small molecules of uric acid. Extremely high levels of uric acid built up in the joints indicate that there is something wrong with the individual's kidneys. Using the knowledge you gained from the homeostasis unit, support the connection between built up of uric acid and the possibilities of kidneys malfunctioning.arrow_forward
- Answer the following questions briefly. What are the possible consequences should there be a failure in the ability of the body to dispose of or eliminate toxic metabolic wastes? What are the two types of animals based on the osmolarity of their body fluids in relation to the environment? Identify the three types of nitrogenous wastes excreted by animals.arrow_forwardWhich of the following best describes the changes between dilute (osmolarity 50mOsm/Kg) andconcentrated urine (osmolarity 1200mOsm/Kg)? a. Concentrated urine has more water than NaCl moleculesb. Concentrated urine has less water than NaCl moleculesc. Dilute urine has more NaCl than water moleculesd. Dilute urine has less water than NaCl moleculesarrow_forwardOsmolarity is the measure of __________concentration of _________ particles. total; water partial; water total; solute partial; solute none of the abovearrow_forward
- If blood osmolarity increases, receptors in the_______ detect this and signal the gland to increase release of________ . This hormone acts on the walls of the_____ and the______, causing them to insert more water porescalled_______ into their membranes and, thus, cause the urine to become more______ .arrow_forwardDrinking too much water can be a bad thing. If someone sweats heavily and drinks lots of water, his or her sodium levels drop. The resulting “water intoxication” can be fatal. Why is the sodium balance so important?arrow_forwardFatty tissue holds the kidneys in place. Extremely rapid weight loss may cause this tissue to shrink so that the kidneys slip from their normal position. On rare occasions, the slippage can put a kink in one or both ureters and block urine flow. Suggest what might then happen to the kidneys.arrow_forward
- The amount of a substance excreted from the kidneys is calculated by which of the following equations ? filtration 1 + secret - reabsorption filtration - secretion - reabsorption filtration - ( eretionre reabsorption )arrow_forwardIn the proximal tubule, the reabsorption of Na+, amino acids, and glucose causes (before water moves): Decreased osmolarity of the tubular fluid but increased osmolarity of the interstitial fluid Decreased osmolarity of the tubular fluid and interstitial fluid O Increased osmolarity of the tubular fluid but decreased osmolarity of the interstitial fluid O Increased osmolarity of the tubular fluid and the interstitial fluid No changes in osmolarityarrow_forwardA "red-hot" bacteria infection of the intestinal tract irritates cell and interface with digestion. Such a condition is often accompanied by diarrhea, which causes loss of body water. On the basis of what you have learned about osmotic water flows, explain why diarrhea my occur.arrow_forward
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