Your classmate Ramu was going to visit Nainital. While travelling at a higher altitude, he complains of dizziness and vomiting sensation. In your opinion, which part of the inner ear is disturbed during his journey.

Explanation

To understand why Ramu is experiencing dizziness and vomiting sensations while traveling at a higher altitude, we need to analyze the role of the inner ear in balance and pressure regulation.

### Step-by-Step Solution:

1. **Understanding the Inner Ear Structure**: The inner ear consists of several important structures, including the cochlea (for hearing) and the vestibular system (for balance). The vestibular system includes the semicircular canals and the otolith organs.

2. **Role of the Semicircular Canals**: The semicircular canals are three fluid-filled structures that help detect rotational movements of the head. They contain sensory hair cells that respond to changes in fluid movement caused by head motion.

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