Answer:
Ventromedial hypothalamus.
Step-by-step explanation:
Ventromedial hypothalamus is a part of the hypothalamus in the brain that is responsible for controlling blood glucose levels. It stimulate the pancreas to release hormones like insulin which stabilize the blood glucose levels.
The hypothalamus also stimulate the adrenal gland to make and release cortisol in the blood which increase blood glucose levels when it is low.