ANATOMY & PHYSIOLOGY 4/E PAC 1 SEMESTER
4th Edition
ISBN: 9781265061173
Author: McKinley
Publisher: MCG CUSTOM
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Chapter 25.4, Problem 13WDYL
Summary Introduction
To analyze:
The effect of aldosterone on blood pressure, blood volume, blood osmolarity, and K+ concentration in the blood plasma.
Introduction:
Aldosterone is an endocrine hormone that is produced from the cortical region of the adrenal glands. these glands are located on the upper part of each kidney. Aldosterone is a part of the renin-angiotensin-aldosterone system that regulates blood pressure.
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50 Which of the following is most likely to stimulate the release of aldosterone from the adrenal gland?
A) A decrease in the osmolality of the plasma
B) A decrease in the release of renin by the kidney
C) An increase in the arterial blood pressure
D) An increase in the extracellular fluid volume
E) An increase in the rate of conversion of angiotensin I to angiotensin II
How does aldosterone influence the contents and volume of fluid output?
How does aldosterone regulate the sodium and potassium ion concentrations?
Chapter 25 Solutions
ANATOMY & PHYSIOLOGY 4/E PAC 1 SEMESTER
Ch. 25.1 - Prob. 1WDYLCh. 25.1 - Which ions are more prevalent in the intracellular...Ch. 25.1 - What is the major distinction in the chemical...Ch. 25.1 - Prob. 4WDYLCh. 25.2 - What are the two major sources of fluid intake?...Ch. 25.2 - How would you distinguish fluid deficiency from...Ch. 25.2 - Prob. 7WDYLCh. 25.2 - Which of these four hormonesangiotensin II,...Ch. 25.3 - Why do electrolytes exert a greater osmotic...Ch. 25.3 - Prob. 10WDYL
Ch. 25.4 - Prob. 11WDYLCh. 25.4 - How does the homeostatic system involving ADH...Ch. 25.4 - Prob. 13WDYLCh. 25.4 - Prob. 14WDYLCh. 25.5 - What is meant by acid-base balance?Ch. 25.5 - How are fixed acids distinguished from volatile...Ch. 25.5 - How do the kidneys regulate fixed acids to help...Ch. 25.5 - Prob. 18WDYLCh. 25.5 - What are the three chemical buffering systems, and...Ch. 25.5 - Prob. 20WDYLCh. 25.6 - Prob. 21WDYLCh. 25.6 - Prob. 22WDYLCh. 25.6 - Prob. 23WDYLCh. 25.6 - Prob. 24WDYLCh. 25.6 - Prob. 25WDYLCh. 25.6 - Prob. 26WDYLCh. 25 - Prob. 1DYKBCh. 25 - _____ 2. The fluid compartment with the largest...Ch. 25 - _____3. Which of the following would result in...Ch. 25 - _____4. If an individual has decreased saliva...Ch. 25 - _____5. Which hormone decreases total body fluid,...Ch. 25 - Which of the following describes an electrolyte?...Ch. 25 - Prob. 7DYKBCh. 25 - Prob. 8DYKBCh. 25 - Which of the following is not a chemical buffer in...Ch. 25 - Prob. 10DYKBCh. 25 - List the three variables that determine the...Ch. 25 - Describe the movement of water between the...Ch. 25 - Prob. 13DYKBCh. 25 - Explain the homeostatic system involving the renin...Ch. 25 - Describe how ANP is regulated and how it opposes...Ch. 25 - Describe the functions of Na+ and how it is...Ch. 25 - Describe what occurs in the kidney to maintain...Ch. 25 - Prob. 18DYKBCh. 25 - List the three chemical buffers, and describe how...Ch. 25 - Describe respiratory acidosis and its...Ch. 25 - Maria brings her baby to the emergency room. She...Ch. 25 - Prob. 2CALCh. 25 - Prob. 3CALCh. 25 - Harold has been suffering from diabetes mellitus...Ch. 25 - Prob. 5CALCh. 25 - Morgan is a nurse at the local hospital. She...Ch. 25 - Ms. Taylor, 68 years old, has been vomiting for 2...Ch. 25 - Prob. 3CSL
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- 5. During an in vitro experiment studying aldosterone secretion, an isolated adrenal gland is perfused with various concentrations of potassium and angiotensin II Which of the following combinations of potassium and angiotensin II will cause the greatest increase in aldosterone secretion? Angiotensin II Potassium Increased Increased Increased Normal Normal Normal Decreased Decreased OA) OB) OC) D) DE) QF) G) H) ) Decreased increased unchanged decreased increased unchanged decreased increased unchanged decreasedarrow_forwardA. Maintenance of fluid balance is important for the survival of humans. How does antidiuretic hormone and aldosterone contributes to the maintenance of fluid balance?(ii) High blood pressure can result from increased sodium concentration of plasma. What is the main hormone involved in regulation of sodium and how does it affect the sodium content of blood?(iii) Compare intracellular fluid to extracellular fluid in terms of their chemical composition of proteins, sodium and potassium.(b) Explain the morphological changes that will occur and the driving force when red blood cells are place in (i) 2.0 % sodium chloride solution (ii) 0.9 % sodium chloride solution (iii) 0.01 % sodium chloride solution 1. What are the 4 causes of subarachnoid hemorrhage? 2. State the factors involved in congenital berry or saccular aneurysm 3. Mention 5 specific brain tumors that you know. 4. What is dura mater, arachnoid matter and pia matter? 5. What is meningioma 6. What is acute subdural hematoma 7.…arrow_forwardWhat controls the secretion of aldosterone under these circumstances?arrow_forward
- Nathan has Addison’s disease (insufficient aldosterone release). How does this affect his plasma Na+ and K+ levels? How does this affect his blood pressure? Explain.arrow_forwardWhat effect does an overproduction of the hormone aldosterone have on the concentration of sodium and potassium in the blood?arrow_forwardHow does aldosterone influence fluid and electrolyte balance?arrow_forward
- List the sequence of events leading from increased renin secretionto increased aldosterone secretion?arrow_forwardMorgan is a nurse at the local hospital. She received the lab results back from a patient that said the patient has hyperaldosteronism, a high level of aldosterone. Based on this diagnosis, explain what you would expect in regard to blood levels of Na+ and K+ as well as blood pressure. Explain why.arrow_forwardWhat is the primary function of aldosterone?arrow_forward
- Briefly describe the role of aldosterone in the regulation of potassium ions.arrow_forwardWhich of the following factors will enhance ADH release? (a) increase in ECF volume, (b) decrease in ECF volume, (c) decrease in ECF osmolality, (d) increase in ECF osmolality.arrow_forwardDescribe the functions of Na+ and how it is regulated.arrow_forward
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