PATHOLOGY

Detailed explanation-1: -Hormone production and release are primarily controlled by negative feedback. In negative feedback systems, a stimulus elicits the release of a substance; once the substance reaches a certain level, it sends a signal that stops further release of the substance.

Detailed explanation-2: -Another example of negative feedback is the regulation of the blood calcium level. The parathyroid glands secrete parathyroid hormone, which regulates the level of calcium in the blood. If calcium decreases, the parathyroid glands sense the decrease and secrete more parathyroid hormone.

Detailed explanation-3: -Most hormone feedback mechanisms involve negative feedback loops. Negative feedback keeps the concentration of a hormone within a narrow range. But oxytocin regulation involve positive feedback loops. The release of oxytocin feeds back to increase more oxytocin production and release.

Detailed explanation-4: -Answer and Explanation: Oxytocin is a hormone that is not involved in a negative feedback mechanism.