BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 48, Problem 1S
Humans have a number of mechanisms that help to maintain blood pressure, particularly when it falls too low. Explain how the kidney and the endocrine systems help to maintain blood pressure.
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Chapter 48 Solutions
BIOLOGY
Ch. 48.1 - Prob. 1LOCh. 48.1 - Prob. 2LOCh. 48.2 - Prob. 1LOCh. 48.2 - Prob. 2LOCh. 48.2 - Prob. 3LOCh. 48.3 - Prob. 1LOCh. 48.3 - Prob. 2LOCh. 48.4 - Prob. 1LOCh. 48.4 - Prob. 2LOCh. 48.5 - Prob. 1LO
Ch. 48.5 - Prob. 2LOCh. 48.5 - Prob. 3LOCh. 48.5 - Prob. 4LOCh. 48 - Prob. 1DACh. 48 - Prob. 1IQCh. 48 - Prob. 2IQCh. 48 - An ECG measures a. changes in electrical potential...Ch. 48 - Systole is vitally important to heart function and...Ch. 48 - Which of the following is the correct sequence of...Ch. 48 - Which of the following statements is not true? a....Ch. 48 - Prob. 5UCh. 48 - Prob. 6UCh. 48 - When a sphygmomanometer is used, a. blood pulses...Ch. 48 - Prob. 8UCh. 48 - In vertebrate hearts, atria contract from the top,...Ch. 48 - Prob. 2ACh. 48 - The difference between the amphibian and mammal...Ch. 48 - Prob. 4ACh. 48 - Humans have a number of mechanisms that help to...Ch. 48 - Prob. 2SCh. 48 - Is the evolution of the four-chambered heart...Ch. 48 - Prob. 4S
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- Explain what happens when there’s too much water in the blood stream. Refer to ADH as part of your answerarrow_forwardMr. Duderino comes to the doctor with high blood pressure. Test show that he also has elevated levels of renin in his blood and atherosclerotic plaques that have nearly blood blow flow through his renal arteries. Mr. Gregory is puzzled. Explain to him how decreased blood flow in his renal arteries could cause renin secretion to increase. Map the pathways through which elevated renin causes high blood pressure for Mr.Gregoryarrow_forwardAssume a person has been in a bad car accident and has severe bleeding from a partially severed arm. Describe the body’s response to this by answering the following What mechanisms will occur to reduce the blood loss l(hemorrhaging)? What events happen as part of the clotting process? How does the body slow down blood loss? What would happen if blood volume falls too low? What happens if homeostasis and blooarrow_forward
- explain how the circulatory system reabsorbs needed solutes.arrow_forwardExplain the kidneys’ role in blood pressure regulation.arrow_forwardPressure sensing by the kidneys is a better surrogate for: A. Heart rate B. Stroke volume C. Cardiac output D. Differences in water concentration between the intracellular and extracellular compartmentsarrow_forward
- Which hormone increases blood volume by increasing reabsorption of water in the kidneys? A erythropoietin B atrial natriuretic peptide C leptin D antidiuretic hormonearrow_forwardIf someone had a drop in their blood pressure the myogenic mechanism would respond by stimulating of the afferent arteriole. Select one: O a. vasodilation O b. vasoconstrictionarrow_forwardExpain in Details How Blood Pressure of an individual is regulated by the Kidney?arrow_forward
- When Jay had diarrhea his blood pressure dropped so his body took an action to compensate. Which one of the followings would better describe the mechanism Question 64 options: BP drop affects blood vessels baroreceptors and activates renin-angiotensin-aldosterone mechanism leading to increase ADH release BP drop affects blood vessels baroreceptors and activates renin-angiotensin-aldosterone mechanism leading to decrease ADH release BP drop affects blood vessels baroreceptors and inhibit renin-angiotensin-aldosterone mechanism leading to decrease ADH release BP drop affect blood vessels baroreceptors and inhibit renin-angiotensin-aldosterone mechanism leading to increase ADH releasearrow_forwardWhat role does vasopressin play when there is a decrease in blood volume? a. It acts on kidneys to increase water retention. b. It excites magnocellular neurosecretory cells. c. It stimulates the sympathetic division of ANS. d. It motivates animals to shun water.arrow_forwardYou are designing the arterial blood vessels that go to the kidney. The first part of kidney function involves a filtration mechanism that filters blood. To maximize this filtration mechanism, you want to maximize blood flow to the kidney. Using Poiseuille’s Law (on page 1), explain how you would construct the arterial circuit so that blood flow is maximized. Assume that blood viscosity (h) will not be changed.arrow_forward
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