Which of the following hormones is not produced by the pancreas?

The correct response highlights that testosterone is not produced by the pancreas. The pancreas is primarily responsible for regulating blood sugar levels through the production of hormones such as insulin, glucagon, and somatostatin. Insulin lowers blood sugar levels by facilitating the uptake of glucose into cells, while glucagon raises blood sugar levels by stimulating the liver to release stored glucose. Somatostatin, another hormone produced by the pancreas, plays a role in inhibiting the release of both insulin and glucagon, thus helping to maintain a balance in blood sugar levels.

In contrast, testosterone is primarily produced in the testes in males and the ovaries in females, as well as in small amounts by the adrenal glands. Therefore, it is not associated with the pancreatic function in glucose metabolism and regulation. Understanding the distinct roles and sources of these hormones is crucial for recognizing their relevance within the endocrine system.