Urinary System and Dehydration Quiz

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Questions and Answers

What is the function of natriuretic hormone in diabetic kidney disease?

  • Causes vasodilation
  • Opposes aldosterone and causes Na+ secretion (correct)
  • Stimulates ADH release
  • Promotes Na+ reabsorption

Which hormone increases Ca++ reabsorption and blocks phosphate reabsorption?

  • Aldosterone
  • Renin
  • Parathyroid hormone (PTH) (correct)
  • Erythropoietin (EPO)

In what locations are the baroreceptors found to check blood pressure?

  • Kidneys and bladder
  • Heart and lungs
  • Intestines and liver
  • Aorta and carotid sinuses (correct)

How does caffeine affect the nephron function?

<p>Promotes vasodilation in the nephron (D)</p> Signup and view all the answers

What is the primary function of Vitamin D synthesis?

<p>Enhances erythropoiesis (C)</p> Signup and view all the answers

How does the kidney contribute to acid/base homeostasis?

<p>By regulating hydrogen ions balance (D)</p> Signup and view all the answers

What is the main function of the nephrons in the kidney?

<p>Maintain homeostatic balance of plasma and excrete potential toxins (A)</p> Signup and view all the answers

What is the purpose of the macula densa in the kidney?

<p>Regulate renin release based on plasma osmolarity (A)</p> Signup and view all the answers

What does anuria, or excreting less than 50 mL of urine per day, indicate?

<p>Kidney disease (C)</p> Signup and view all the answers

Which process involves substances being reabsorbed by active transport, diffusion, facilitated diffusion, secondary active transport, and osmosis?

<p>Tubular reabsorption (C)</p> Signup and view all the answers

What causes systemic edema in the body?

<p>Low osmotic pressure in circulating blood (D)</p> Signup and view all the answers

Which part of the kidney is responsible for releasing hormones that regulate blood pressure?

<p>Tuboglomerular apparatus (B)</p> Signup and view all the answers

What is the function of the collecting ducts in the kidney?

<p>Reabsorb sodium under the influence of aldosterone (C)</p> Signup and view all the answers

How does aldosterone influence the distal convoluted tubule (DCT) function?

<p>Increase water reabsorption (D)</p> Signup and view all the answers

Which substance is recycled in the proximal convoluted tubule (PCT) to aid in bicarbonate recovery?

<p>Hydrogen ions (A)</p> Signup and view all the answers

What is the main function of the renal co in glomerular filtration?

<p>Push solutes through filtration slits into Bowman's capsule (C)</p> Signup and view all the answers

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