This cross-sectional drawing of the human brain depicts four structures that are key components of the limbic system. Which brain structure regulates survival behaviors, such as eating, drinking, fear, aggression, and sleep-wake cycles?

A) hypothalamus
B) thalamus
C) hippocampus
D) amygdala

Question

This cross-sectional drawing of the human brain depicts four structures that are key components of the limbic system. Which brain structure regulates survival behaviors, such as eating, drinking, fear, aggression, and sleep-wake cycles?

A) hypothalamus 
B) thalamus 
C) hippocampus 
D) amygdala

Quizplus · Accepted Answer

The hypothalamus is a key component of the limbic system that regulates survival behaviors, such as eating, drinking, fear, aggression, and sleep-wake cycles. The thalamus is involved in sensory processing and relaying information to the cortex, while the hippocampus is important for memory formation and retrieval. The amygdala plays a role in emotional processing, including fear and aggression, but it is not primarily responsible for regulating survival behaviors.

This Cross-Sectional Drawing of the Human Brain Depicts Four Structures