End bulb of Ruffini is associated with:

Options

A. Heat
B. Cold
C. Touch
D. Pressure

Answer

**Step-by-Step Solution:**

1. **Identify the Structure**: The question asks about the "End bulb of Ruffini," which is also known as Ruffini corpuscles.

2. **Understand the Function**: Ruffini corpuscles are sensory receptors that are primarily involved in the perception of certain sensations.

3. **Analyze the Options**:
- **Option 1: Heat** - Ruffini corpuscles are indeed associated with the sensation of heat.
- **Option 2: Cold** - The sensation of cold is primarily perceived by Krause's end bulbs, not Ruffini corpuscles.
- **Option 3: Touch** - The sensation of touch is mainly perceived by Merkel's discs.
- **Option 4: Pressure** - Pressure is detected by Pacinian corpuscles.

4. **Conclusion**: Based on the functions of the sensory receptors, the End bulb of Ruffini is associated with the sensation of heat.

**Final Answer**: The End bulb of Ruffini is associated with the sensation of heat.

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