This is an interconnected group of mid-brain structures that are responsible for the arousal and regulation of emotion, motivation, memory, and other mental processes.

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The limbic system is a group of mid-brain structures, including the amygdala, hippocampus, and hypothalamus, that are involved in functions such as emotion, motivation, memory, and regulation of the autonomic nervous system. The brain stem (A) is responsible for basic life-sustaining functions such as breathing and heart rate. The reticular formation (C) is a network of neurons involved in alertness and sleep-wake transitions. The cerebral cortex (D) is the outermost layer of the brain and is responsible for higher cognitive functions such as perception, thinking, and decision-making.

This Is an Interconnected Group of Mid-Brain Structures That Are