PATHOLOGY MCQ
ENDOCRINE SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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After eating a carbohydrate-rich meal, the mammalian pancreas increases its secretion of ____
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glucagon.
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insulin.
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thyroxine.
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ecdysone.
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Explanation:
Detailed explanation-1: -Final Answer: Constriction of skin blood vessels and contraction of skeletal muscles when it is too cold is an example of a negative feedback loop in humans.
Detailed explanation-2: -Insulin is normally secreted by the beta cells (a type of islet cell) of the pancreas. The stimulus for insulin secretion is a high blood glucose-it’s as simple as that. Although there is always a low level of insulin secreted by the pancreas, the amount secreted into the blood increases as the blood glucose rises.
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