Human Biology (MindTap Course List)
11th Edition
ISBN: 9781305112100
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Chapter 12, Problem 4CT
Licorice is used as a remedy in Chinese traditional medicine and also is a flavoring for candy. When licorice is eaten, one of its components triggers the formation of a compound that mimics aldosterone and binds to receptors for it. Based on this information, explain why people who have high blood pressure are advised to avoid eating much licorice.
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Morgan 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.
Describe the functions of the following hormones:
Aldosterone
Erythropoietin
Antidiuretic hormone
Angiotensin II
Epinephrine
What is the role of RAA on the secretion of Aldosterone? Explain the RAA pathway
Chapter 12 Solutions
Human Biology (MindTap Course List)
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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- Theoretically, which one of the following hormones could be administered to decrease blood volume: antidiuretic hormone, aldosterone, parathyroid hormone, or atrial natriuretic peptide? Explain.arrow_forwardYour patient has a condition called hyporenin hypoaldosterone, which results in low levels of aldosterone. [Note: the NORMAL actions of aldosterone in the kidney is to excrete K+ and reabsorb Na+.] This condition results in excess K+ in the blood (lab results showed 7.5 mmol/L K+ in the blood) and low levels of Na+ in the blood (lab results showed 110 mmol/L Na+ in the blood). Answer the following questions. For the calculation, show your work. A. What is the medical term for high blood K+ levels? B. Calculate the Equilibrium Potential for K+ using the above lab value and a normal ICF K+ level of 145 mmol/L. C. What is the normal RMP for ventricular cardiac myocytes? E. What effect can this condition have on the heart?arrow_forwardWhich of the following statements correctly identifies similarities and differences between antidiuretic hormone and aldosterone? Select one: a. While both hormones act to decrease blood pressure, aldosterone does this indirectly by retaining potassium ions. b. While both hormones act to increase blood pressure, aldosterone does this indirectly by retaining sodium ions. c. While both hormones act to increase water retention, aldosterone acts in response to the parasympathetic nervous system. d. While both hormones act to decrease water retention, aldosterone acts in response to the sympathetic nervous system.arrow_forward
- What happens when excess secretion of ADH occurs? State two causes of this.arrow_forwardDescribe the functions of aldosterone.arrow_forwardThe adrenal cortex of a patient who has lost a large volume of blood will increase secretion of aldosterone. What effect will this increased secretion have on the patient’s blood concentrations of sodium and potassium ions?arrow_forward
- List three conditions that lead to aldosterone release.arrow_forwardCompare and contrast the effects of aldosterone and ADH on water and ion balance in the bloodstream.arrow_forwardDescribe how ANP is regulated and how it opposes the action of the other three hormones (angiotensin II, ADH, and aldosterone).arrow_forward
- Consider the effect of a twofold increase in the ECF concentration of Na+ or K+ ions. Which increase in ion concentration is the more deadly and why?arrow_forwardThe receptor for aldosterone appears to have evolved much earlier than aldosterone itself. Propose a hypothesis to explain how that might have occurredarrow_forwardRenin is secreted in response to hypovolemia or to an increase in the osmolality of the blood. Provide three possible mechanisms by which these conditions may stimulate rennin secretion. What are the consequences of increased rennin secretion that lead to increased aldosterone secretion? Present this sequence of events. Why are angiotensin converting enzyme inhibitors (ACEIs) used as a common therapy for hypertension? How do they influence blood pressure? Are plasma levels of renin elevated or depressed in a patient with Conn’s disease? Why?arrow_forward
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