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Insulin and glucagon, the two hormones that regulate blood sugar, are secreted by:
AThe thyroid
BThe adrenals
CThe pituitary
DThe pancreas
Answer & Solution
Correct answer: D. The pancreas
1. The pancreas is an internal organ that secretes hormones regulating blood sugar levels.
2. Those two hormones are insulin and glucagon.
3. They work in opposite directions: insulin lowers blood glucose while glucagon raises it.
4. People who suffer from diabetes do not produce enough insulin, which is why the condition is tied to this gland rather than to the thyroid or adrenals.
_Source: OpenStax Psychology (1st ed., CC BY 4.0), Ch 3 "Biopsychology", §3.5 The Endocrine System_
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