What system includes structures such as the hippocampus and amygdala, and regulates emotions?

The limbic system is a crucial part of the brain that plays a significant role in regulating emotions and forming memories. It includes key structures such as the hippocampus, which is essential for the formation of new memories and connecting emotions to those memories, and the amygdala, which is involved in processing emotions such as fear and pleasure. This system works together to influence emotional responses and behaviors as well as to facilitate emotional learning and memory.

The other options focus on broader or different aspects of brain function. The autonomic system primarily regulates involuntary bodily functions, such as heart rate and digestion, rather than emotions. The forebrain system encompasses a larger area of the brain, including the limbic system but is not exclusively focused on emotional regulation. The central nervous system includes the brain and spinal cord and is responsible for processing and transmitting information throughout the body, but it does not specifically highlight the emotional regulation characteristics of the limbic system. Thus, the limbic system is distinctly recognized for its vital role in emotion regulation and memory formation.