Kidney Function Quiz

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Questions and Answers

What is the function of the ENaC transporter in the nephron?

  • Reabsorbing sodium (correct)
  • Filtering waste products
  • Regulating urine flow
  • Stimulating RBC production

Where does most reabsorption of water occur in the kidney?

  • Renal corpuscle
  • Distal tubule
  • Collecting duct (correct)
  • Proximal tubule

What happens when the bladder stretches?

  • Reabsorption of water increases
  • Blood pressure decreases
  • Proteins are filtered out
  • Urination is initiated (correct)

What is the main role of the renal corpuscle in the kidney?

<p>Filtration of blood (C)</p> Signup and view all the answers

Which process contributes to the regulation of blood pressure in the nephron?

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

What is the main function of the afferent arteriole in the kidney nephron?

<p>Constriction to regulate glomerular filtration rate (GFR) (A)</p> Signup and view all the answers

What is the significance of the negative charge around the fenestrations of the glomerular capillaries?

<p>It repels proteins from passing through into the Bowman's capsule (A)</p> Signup and view all the answers

Where does the fine tuning of reabsorption occur in the nephron?

<p>Distal tubule (B)</p> Signup and view all the answers

What is the significance of the transport maximum (Tm) in the nephron?

<p>It represents the fastest rate at which a substance can be reabsorbed (A)</p> Signup and view all the answers

What occurs when the osmolarity of the filtrate is higher than normal in the nephron?

<p>The osmoreceptors signal for increased water reabsorption (A)</p> Signup and view all the answers

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