The amygdala is the part of the brain that is responsible for processing fear, triggering anger, and motivating us to act. It is an almond-shaped structure located deep within the temporal lobes of the brain. The amygdala is also associated with other emotions, particularly anxiety and aggression. When we encounter a situation that we perceive as threatening, the amygdala sends a distress signal to the rest of the brain, which triggers a cascade of physiological responses, including a rapid heart rate, jacked-up blood pressure, tense muscles, and the release of adrenaline.
In addition to the amygdala, parts of the prefrontal cortex may also play a role in anger. The prefrontal cortex is the area of the brain that controls reasoning, judgment, and helps us think logically before we act. People with damage to this area of the brain often have trouble controlling their emotions, especially anger and aggression.
In summary, the amygdala is the part of the brain that controls anger, along with other emotions such as fear and anxiety. The prefrontal cortex may also contribute to the regulation of an anger response.