The mid-brain and hind-brain are responsible for controlling involuntary muscle movements, such as those involved in activities like blood pressure regulation, salivation, and vomiting.

The sensation of feeling full is associated with a separate center in the fore-brain, indicating that certain sensations, like hunger and satiety, have specialized areas beyond those dedicated to traditional sensory experiences.

Insulin, a hormone from the pancreas, regulates blood sugar levels. When blood sugar rises, the pancreas produces more insulin, and as sugar levels fall, insulin secretion is reduced.