Question

_____ carries hunger signals to the brain from stomach.

• A. Medulla oblongata
• B. Diencephalon
• C. Cerebrum
• D. Mid brain

Hint:

Hypothalamus present in the diencephalon regulates:
• Hunger
• Thirst
• Body temperature
• Hormonal balance

Answer 1

The Correct Option is B

Concept: The brain is divided into different regions, and each region performs specific functions. Hunger, thirst, temperature regulation, and emotional responses are mainly controlled by a part of the forebrain known as the hypothalamus, which is present in the diencephalon. Important Brain Functions:
• Diencephalon $\rightarrow$ Controls hunger, thirst, body temperature, and hormonal activities.
• Cerebrum $\rightarrow$ Thinking, memory, intelligence, voluntary actions.
• Medulla oblongata $\rightarrow$ Controls involuntary actions like heartbeat and breathing.
• Mid brain $\rightarrow$ Visual and auditory reflexes.

Step 1: Identifying the center associated with hunger signals. The stomach sends hunger-related signals to the hypothalamus in the brain. The hypothalamus is a part of the: \[ \boxed{\text{Diencephalon}} \]

Step 2: Understanding why other options are incorrect.
• Option (1) Medulla oblongata: It mainly controls involuntary activities such as breathing and heartbeat.
• Option (3) Cerebrum: It is responsible for intelligence, memory, and voluntary movements.
• Option (4) Mid brain: It mainly controls reflexes associated with vision and hearing. Therefore, the correct answer is: \[ \boxed{(2)\ \text{Diencephalon}} \]