Nephron and Urine Formation in Kidneys
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Questions and Answers

Which vessel supplies the tuft of capillaries in the glomerulus?

  • Afferent arteriole (correct)
  • Efferent arteriole
  • Renal vein
  • Renal artery

What is the function of the Malpighian corpuscle?

  • Ultra filtration of plasma (correct)
  • Secretion of hormones
  • Filtration of blood
  • Production of red blood cells

What is the main function of the filtration barrier in the glomerulus?

  • Preventing all molecules from passing through
  • Stopping all filtration completely
  • Allowing all molecules to pass through
  • Allowing only certain sized molecules to pass through (correct)

Which structure surrounds the glomerulus?

<p>Bowman's capsule (A)</p> Signup and view all the answers

What is the functional unit of the kidney responsible for the formation of urine?

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

What is the approximate diameter of the glomerulus?

<p>~200μm (C)</p> Signup and view all the answers

How many nephrons does each kidney have on average?

<p>1.3 million (C)</p> Signup and view all the answers

What is the primary reason for the increase in size of the kidney after birth?

<p>Increase in length of the nephrons (C)</p> Signup and view all the answers

Where are the glomeruli located in cortical nephrons?

<p>In the renal cortex (C)</p> Signup and view all the answers

What is a distinctive feature of juxtamedullary nephrons compared to cortical nephrons?

<p>Long loops of Henle reaching renal papilla (D)</p> Signup and view all the answers

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