The _____ in the brain regulates body temperature, thirst, hunger, sleeping, walking, sexual activity, and emotions.

• A. pituitary gland
• B. hypothalamus
• C. hippocampus
• D. amygdala

Answer: (B)

Verified step by step guidance

1. Identify the function described in the problem: regulation of body temperature, thirst, hunger, sleeping, waking, sexual activity, and emotions.
2. Understand that these functions are related to homeostasis and basic survival needs, which are typically managed by a specific part of the brain.
3. Recall the roles of the given brain structures: the pituitary gland, hypothalamus, hippocampus, and amygdala.
4. Recognize that the hypothalamus is responsible for maintaining homeostasis and regulating the functions mentioned.
5. Conclude that the hypothalamus is the correct answer based on its role in regulating these physiological and behavioral processes.