NNDP1013: Renal Physiology Secretion & Micturition Quiz

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Questions and Answers

Which process plays an important role in excreting waste and acids through the kidneys?

  • Capillary
  • Filtration
  • Secretion (correct)
  • Reabsorption

What is the major route of elimination for most drugs?

  • Secretion (correct)
  • Capillary
  • Reabsorption
  • Filtration

What is the tight range for arterial blood pH to maintain acid-base balance?

  • 7.38 - 7.42 (correct)
  • 7.45 - 7.50
  • 7.0 - 7.2
  • 6.5 - 7.0

Where do acids mainly accumulate from metabolic processes in the human body?

<p>Extracellular fluid (ECF) (D)</p> Signup and view all the answers

Which component of the nephron is responsible for maintaining acid-base balance?

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

Which enzyme is key in buffering many H+ by bicarbonate ions in the blood and ICF?

<p>Carbonic anhydrase (C)</p> Signup and view all the answers

What is the major buffer in urine that can bind with free H+ to generate H2PO4-?

<p>Phosphate (HPO42-) (A)</p> Signup and view all the answers

In renal tubular secretion, which substances are moved by active transport from the blood into renal tubules?

<p>Potassium, hydrogen ions, and various drugs (C)</p> Signup and view all the answers

What is the composition of urine that reflects the filtration, reabsorption, and secretion activities of the renal tubules?

<p>Urine osmolarity (C)</p> Signup and view all the answers

What drains urine produced in the kidney tubules into the ureter?

<p>Renal pelvis (D)</p> Signup and view all the answers

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