Endocrine Physiology Lecture 10: Glucose Homeostasis
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Questions and Answers

What happens to plasma K+ levels in normal individuals when infused with insulin and glucose?

  • They initially decrease then increase
  • They significantly increase
  • They significantly decrease (correct)
  • They remain unaffected

Which of the following tissues is not affected by insulin in terms of glucose uptake?

  • Muscle cells
  • Kidney tubules
  • Adipose tissue
  • Nervous tissue (correct)

What is the effect of treating diabetic acidosis patients with insulin?

  • K+ levels increase then decrease
  • No change in K+ levels
  • Hyperkalemia often develops
  • Hypokalemia often develops (correct)

Which of the following decreases insulin secretion?

<p>Increased somatostatin (C)</p> Signup and view all the answers

What is the effect of glucagon-like peptide 1 (GLP-1) on insulin secretion?

<p>It stimulates insulin secretion only when blood glucose is above the fasting level (B)</p> Signup and view all the answers

What is the effect of oral administration of glucose on insulin release?

<p>It stimulates insulin release to a greater extent than intravenous infusion of glucose (D)</p> Signup and view all the answers

What is the effect of adrenergic stimulation on beta cells?

<p>It has a dual effect on beta cells (D)</p> Signup and view all the answers

What is the effect of thiazide diuretics on insulin secretion?

<p>They decrease insulin secretion (D)</p> Signup and view all the answers

What is the effect of α-adrenergic activity on insulin secretion?

<p>It decreases insulin secretion (D)</p> Signup and view all the answers

What is the effect of potassium depletion on insulin secretion?

<p>It decreases insulin secretion (D)</p> Signup and view all the answers

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