Which of the following regarding aldosterone is false? the process leading to its release begin with the release of renin it initiates increased placement of Na+/K pumps its target cells are located in the Loop of Henle O it increases the Na+ gradient between the filtrate and the ECF
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- Fatty tissue holds the kidneys in place. Extremely rapid weight loss may cause this tissue to shrink so that the kidneys slip from their normal position. On rare occasions, the slippage can put a kink in one or both ureters and block urine flow. Suggest what might then happen to the kidneys.Which of the following statements correctly describes the role of aldosterone? a. Aldosterone triggers sodium ion and so water reabsorption. b. Aldosterone triggers potassium ion secretion. c. Aldosterone triggers hydrogen ion secretion. d. Both a and b are correct. e. All of the above are correctAldosterone secretion is regulated by: A. renin secretion by the kidney resulting in the formation of angiotensin II that directly causes aldosterone release B. direct humoral stimulation of adrenal cortex cells by potassium ions C. ACTH during conditions of severe stress D. Atrial natriuretic pepside causing inhibition of aldosterone effects E. All of these are correct
- When a patient is treated with a drug that counteracts the effect of aldosterone (aldosterone antagonist), which of the following parameters are likely to fall? Sodium excreted in the urine Blood volume Urine volume Plasma potassium concentration Blood viscosityWhich of the following stimulates the kidney to reabsorb water to correct the problem of low blood volume? Group of answer choices Both vasopressin and aldosterone Vasopressin (ADH) Aldosterone Atrial natriuretic peptide (ANP)_____________ aldosterone and _____________ ANH ____________ the reabsorption of sodium and _____________ urine production a) Less / more / decreases / decreases b) Less / less / decreases / increases c) Less / more / decreases / increases d) Less / more / increases / increases
- Which of the following is a cause of metabolicacidosis?a. excessive HCl lossb. increased aldosteronec. diarrhead. prolonged use of diureticsWhich hormone is lipid-soluble and helps conserve water?a. ADHb. Aldosteronec. Estrogend. All of the above are correct.true or false Aldosterone is required to restore water from loop of Henle, and reabsorption of Na+ from this segment is increased by ADH, allowing equilibration of water with the hyperosmotic interstitium
- Drugs that increase urine flow (diuretic drugs) are oftenemployed in the treatment of hypertension (high blood pressure)or other disease states. Three physiological categories of suchdrugs are ones that (i) function as loop diuretics, (ii) inhibitthe action of aldosterone, and (iii) block Na+ channels in thecollecting ducts. Explain why each of these categories wouldbe expected to increase Na+ excretion and urine flow. (Hint:Rereading the section on hormones at the end of Chapter 28might prove helpful.)Which of the following side effects can be associated with anti-diuretic hormone (ADH) analogues?A. DepressionB. Increased irritabilityC. Decreased visionD. SeizuresE. HeadacheAcetazolamide is a diuretic that blocks the activity of the enzyme carbonic anhydrase inside kidney tubule cells. This blockage prevents theformation of carbonic acid from CO2 and water. Normally, carbonicacid dissociates to form H+ and HCO3−, and the H+ is exchanged forNa+ from the urine. Blocking the formation of H+ in the tubule cellsblocks Na+ reabsorption, thus inhibiting water reabsorption andproducing the diuretic effect. With this information in mind, what effectdoes acetazolamide have on blood pH, urine pH, and respiratory rate?