Q.

Hypothalamus is a part of:

1 Fore brain  
2 Mid brain  
3 Hind brain  
4 Medulla  

Ans.

(1)

The hypothalamus is a small region at the base of the brain within the diencephalon, lying just above the brain stem and below the thalamus. The hypothalamus plays a crucial role in many important functions, including releasing hormones, regulating body temperature, maintaining daily physiological cycles, controlling appetite, and managing sexual behaviour and emotions.