The stato-acoustic receptor responds to changes of

Options

A. Light and pressure
B. Sound and equilibrium
C. Pain and pressure
D. Pressure and touch.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks what the stato-acoustic receptor responds to. The options provided are:
- A) Light and pressure
- B) Sound and equilibrium
- C) Pain and pressure
- D) Pressure and touch

2. **Analyzing the Terms**: The term "stato-acoustic" can be broken down into two parts:
- "Stato" refers to stability or equilibrium.
- "Acoustic" relates to sound or hearing.

3. **Identifying the Function**: From the breakdown of the term, we can infer that the stato-acoustic receptors are involved in:
- Maintaining balance (equilibrium)
- Responding to sound (auditory functions)

4. **Evaluating the Options**:
- **Option A (Light and pressure)**: This is incorrect because light is detected by photoreceptors, not stato-acoustic receptors.
- **Option B (Sound and equilibrium)**: This is correct as it aligns with the functions of the stato-acoustic receptors.
- **Option C (Pain and pressure)**: This is incorrect because pain is detected by nociceptors and pressure by mechanoreceptors.
- **Option D (Pressure and touch)**: This is also incorrect as these sensations are associated with mechanoreceptors.

5. **Conclusion**: The correct answer is **Option B: Sound and equilibrium**. The stato-acoustic receptors respond to changes in sound and help maintain balance.

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