What are the endocrine glands located on top of the kidneys that release adrenaline when stimulated called?

The glands located on top of the kidneys that are responsible for releasing adrenaline when stimulated are known as the adrenal glands. These glands play a crucial role in the body's response to stress by producing hormones such as adrenaline and cortisol. When the body senses a stressful situation, the adrenal glands release adrenaline into the bloodstream, which helps prepare the body for a "fight or flight" response. This response increases heart rate, elevates blood pressure, and boosts energy supplies, among other physiological changes crucial for handling stressors.

The other glands mentioned, such as the thyroid glands, pancreas, and hypothalamus, have distinct functions that do not involve the direct release of adrenaline. The thyroid glands primarily regulate metabolism, the pancreas is involved in blood sugar regulation and digestive enzyme production, and the hypothalamus plays a role in hormone regulation and controlling the body's homeostasis rather than directly releasing adrenaline. Thus, the adrenal glands are specifically identified for their role in the stress response and adrenaline secretion.