Activities such as walking in a straight line, riding bicycle, and maintaining posture are under the control of region X in the brain. Region X can be identified asthe

Options

A. cerebellum
B. forebraif
C. midbrain
D. medulla

Answer

To solve the question regarding which region of the brain controls activities such as walking in a straight line, riding a bicycle, and maintaining posture, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Activities**: The activities mentioned are walking in a straight line, riding a bicycle, and maintaining posture. These activities require coordination and balance.

2. **Understand Brain Regions**: We need to consider the functions of the different regions of the brain:
- **Cerebellum**: This region is primarily responsible for coordinating voluntary movements, balance, and motor skills.
- **Forebrain**: This area is involved in higher cognitive functions, sensory processing, and voluntary motor activities but is not specifically responsible for coordination.
- **Midbrain**: This region is mainly associated with visual and auditory processing and reflexes, not directly with motor skills.
- **Medulla**: This part controls involuntary functions such as breathing and heart rate, not voluntary movements.

3. **Link Activities to Brain Region**: Since the activities listed involve coordination and balance, they are directly linked to motor skills. The cerebellum is known to control these motor skills effectively.

4. **Conclusion**: Based on the functions of the brain regions, we conclude that region X, which controls walking in a straight line, riding a bicycle, and maintaining posture, is the **Cerebellum**.

### Final Answer:
Region X can be identified as the **Cerebellum**.

---