Human Biology Custom Edition
11th Edition
ISBN: 9781337631532
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Textbook Question
Chapter 12, Problem 2RQ
How does the formation of urine help maintain the body’s internal environment?
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Find how urine flow, urine volume, pH of urine, specific gravity, and silver nitrate affects people who are:
a) dehydrated
b) normal hydrated
c) overhydrated
Include information about urinary system and its hormones in the answer.
a) Describe in your own words the formation of urine in the body.
b) Explain the pathway that urine takes from the kidneys to the outside of the body.
Use key terminology
List the chemical composition of urine.
Chapter 12 Solutions
Human Biology Custom Edition
Ch. 12 - Label the parts of this kidney and nephron.Ch. 12 - How does the formation of urine help maintain the...Ch. 12 - Explain what is meant when we talk about...Ch. 12 - Prob. 4RQCh. 12 - Explain how the kidneys help to maintain the...Ch. 12 - Prob. 1SQCh. 12 - The body loses water by way of the ________. a....Ch. 12 - Water and small solutes enter nephrons during...Ch. 12 - Prob. 4SQCh. 12 - Prob. 5SQ
Ch. 12 - Reabsorption depends on _________. a. osmosis...Ch. 12 - Prob. 7SQCh. 12 - Prob. 8SQCh. 12 - Prob. 9SQCh. 12 - Match the following saltwater balance concepts:Ch. 12 - A urinalysis reveals that the patients urine...Ch. 12 - As a person ages, nephron tubules lose some of...Ch. 12 - Fatty tissue holds the kidneys in place. Extremely...Ch. 12 - Licorice is used as a remedy in Chinese...Ch. 12 - Drinking too much water can be a bad thing. If...Ch. 12 - As the text noted, two-thirds of the water and...
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- Why is excretion important in order to achieve osmotic balance?arrow_forwardWhich of the following pathways best describe the structures which urine has to flow through before being excreted out of the body? (Hint: some structures may be omitted, so just make sure the general order is correct) 1-Collecting duct -> bladder -> ureter 2-Collecting duct -> ureter -> bladder -> urethra 3-Collecting duct -> urethra -> bladder -> ureter 4-Major calyx -> minor calyx -> renal pelvis -> urethraarrow_forwardWhat is the role of the kidneys in the body?arrow_forward
- What is the main function(s) of the urinary system? How do the kidneys regulate fluid level? The enzyme renin is secreted by the kidneys. What is the function of renin?arrow_forwardWhich structure(s) is/are associated with each of the following functions: urea formation, urine formation, temporary storage of urine, and conductionof urine out of the body?arrow_forwardFor each of the following processes, list the structures in the urinary system where they occur Filtration: Secretion: Excretion: Reabsorption:arrow_forward
- Which of the following substances does the body normallyretain? Which does it normally excrete? (1) glucose, (2) sodiumions, (3) bicarbonate ions, (4) acidsarrow_forwardThe part of the nephron whose epithelial cells contain the longest microvilli and the most mitochondria is the (a) glomerular capsule (podocytes), (b) proximal tubule, (c) thin segment, (d) distal tubule.arrow_forwardExplain how the urinary system participates in maintaining homeostasis.arrow_forward
- How are the processes of reabsorption and secretion related? A) Materials move in opposite directions: reabsorption moves materials into the blood, whereas secretion removes them from the blood. B) They both involve movement of material from the tubular fluid into the blood. C) Materials move in opposite directions: secretion moves materials into the blood, whereas reabsorption removes them from the blood. D) They both involve movement of material from the blood into the tubular fluid.arrow_forwardWhich of the following correctly describes the path of fluid flow in the kidney? a) Minor calyx; Major calyx; Nephron: Collecting duct b) Collecting duct; Nephron; Major Calyx; Minor Calyx Od Nephron; Collecting duct; Minor Calyx: Major Calyx d) Nephron; Minor Calyx; Collecting duct; Major calyxarrow_forwardWhat are the functions of the urinary system in the human body, and how do the anatomical structures of the kidneys, ureters, bladder, and urethra contribute to the formation, storage, and elimination of urine?arrow_forward
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