10 Questions
What happens to plasma K+ levels in normal individuals when infused with insulin and glucose?
They significantly decrease
Which of the following tissues is not affected by insulin in terms of glucose uptake?
Nervous tissue
What is the effect of treating diabetic acidosis patients with insulin?
Hypokalemia often develops
Which of the following decreases insulin secretion?
Increased somatostatin
What is the effect of glucagon-like peptide 1 (GLP-1) on insulin secretion?
It stimulates insulin secretion only when blood glucose is above the fasting level
What is the effect of oral administration of glucose on insulin release?
It stimulates insulin release to a greater extent than intravenous infusion of glucose
What is the effect of adrenergic stimulation on beta cells?
It has a dual effect on beta cells
What is the effect of thiazide diuretics on insulin secretion?
They decrease insulin secretion
What is the effect of α-adrenergic activity on insulin secretion?
It decreases insulin secretion
What is the effect of potassium depletion on insulin secretion?
It decreases insulin secretion
This quiz covers the role of five hormones - insulin, glucagon, growth hormone, epinephrine, and cortisol - in glucose homeostasis and the importance of blood glucose regulation for brain, retina, and germinal epithelium function.
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