EBK BIOLOGY
11th Edition
ISBN: 8220102797352
Author: Raven
Publisher: YUZU
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Chapter 49, 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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Compare and contrast the functions of the kidneys and the heart using a table. If both were candidates running for the presidential elections inside your body, which one would choose and why? If you do not want to vote for either the heart or the kidney, which organ would you vote for and why? Think of a way to make your reason more substantial by considering the role of both the heart and the kidneys in blood pressure regulation.
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Chapter 49 Solutions
EBK BIOLOGY
Ch. 49 - An ECG measures a. changes in electrical potential...Ch. 49 - Systole is vitally important to heart function and...Ch. 49 - Which of the following is the correct sequence of...Ch. 49 - Which of the following statements is not true? a....Ch. 49 - Prob. 5UCh. 49 - Prob. 6UCh. 49 - When a sphygmomanometer is used, a. blood pulses...Ch. 49 - Prob. 8UCh. 49 - In vertebrate hearts, atria contract from the top,...Ch. 49 - Prob. 2A
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- Pressure 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_forwardWhich hormone increases blood volume by increasing reabsorption of water in the kidneys? A erythropoietin B atrial natriuretic peptide C leptin D antidiuretic hormonearrow_forwardWhen 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_forward
- When you are have sufficient water volume in your blood, you stop secreting ADH. What is the effect of the absence ADH have upon on the collecting ducts?arrow_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_forwardDescribe how hormones and the kidney control blood pressure and pH.arrow_forward
- Which hormone does the kidney produce thatstimulates red blood cell production?a. thrombopoeitinb. vitamin Dc. EPOd. reninarrow_forwardIn its effort to maintain the blood pressure, pH and excrete waste, the urinary system failed to maintain the blood pressure. In response to the situation, the kidney secreted erythropoietin which triggers the red bone marrow to produce red blood cells. Infer if this is a negative feedback or a positive feedback response.arrow_forwardGive written answer with explanation and conclusionarrow_forward
- Consider a hormone that is secreted in large amounts at a given interval, modified chemically by the liver, and excreted by the kidneys at arapid rate, thus making the half-life of the hormone in the circulatorysystem very short. The hormone therefore rapidly increases in theblood and then decreases rapidly. Suppose that a patient has both liverand kidney disease. Predict the consequences on the blood levels ofthat hormone.arrow_forwardVasopressin is a hormone that is mainly released when the body lacks water. The release of vasopressin causes the kidneys to conserve water by concentrating urine and decreasing urine output. However, vasopressin also has additional functions in other tissues such as the brain and blood vessels, which are not directly involved in urine production. How might vasopressin trigger different responses in different tissues?arrow_forwardWhat is not an action of angiotensin II? A. Vasoconstriction that increases arterial pressure B. Increases thirst C. Stimulates the release of vasopressin antidiuretic hormone D. Stimulate adrenal cortex to release aldosterone E. None of the abovearrow_forward
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