MEDICINE MCQ
ENDOCRINOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a decrease in the concentration of blood glucose
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a decrease in the permeability of cell membranes to glucose
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an increase in the production of glucose from glycogen
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a release of adrenaline into the body
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Detailed explanation-1: -Insulin has an effect on a number of cells, including muscle, red blood, and fat. In response to insulin, these cells absorb glucose out of the blood, having the net effect of lowering the high blood glucose levels into the normal range.
Detailed explanation-2: -Insulin causes glucose to deposited in the liver as glycogen; then, during the next few hours, when blood glucose concentration falls, the liver releases glucose back into the blood, decreasing fluctuations. Clinical significance: During severe liver disease, it is impossible to maintain blood glucose concentration.
Detailed explanation-3: -A well-known effect of insulin is to decrease the concentration of glucose in blood, which should make sense considering the mechanisms described above. Another important consideration is that, as blood glucose concentrations fall, insulin secretion ceases.