“Which gland secretes insulin?”

"The thyroid gland located in the neck plays a critical role in regulating metabolism but does not secrete insulin which is produced by the pancreas. However the question’s context aligns with insulin’s importance in managing blood sugar levels crucial for diabetes treatment. Understanding the endocrine system’s functions including the thyroid’s role in metabolism and the pancreas’s insulin production highlights the complexity of hormonal regulation a vital topic in medical and biological sciences."