End bulbs of Krause in skin belong to the category of

Options

A. Chemoreceptors
B. photoreceptor
C. Frigidoreceptors
D. Nociceptors

Answer

To solve the question "End bulbs of Krause in skin belong to the category of," we will analyze the options provided and the characteristics of the end bulbs of Krause.

### Step-by-Step Solution:

1. **Understanding End Bulbs of Krause**:
- The end bulbs of Krause are specialized sensory receptors located in the skin. They are also known as bulboid corpuscles.

2. **Identifying the Function**:
- These receptors are primarily involved in sensing temperature, particularly cold temperatures.

3. **Categorizing the Receptors**:
- The options provided are:
- A) Chemoreceptor: These receptors respond to chemical stimuli.
- B) Photoreceptor: These receptors respond to light stimuli.
- C) Frigidoreceptor: These receptors specifically respond to cold temperatures.
- D) Nociceptor: These receptors respond to harmful stimuli that can cause pain.

4. **Analyzing Each Option**:
- **Chemoreceptor**: Incorrect, as they detect chemicals, not temperature.
- **Photoreceptor**: Incorrect, as they detect light, not temperature.
- **Frigidoreceptor**: Correct, as this term refers to receptors that detect cold temperatures, which is the primary function of the end bulbs of Krause.
- **Nociceptor**: Incorrect, as they detect pain and harmful stimuli, not specifically cold.

5. **Conclusion**:
- The end bulbs of Krause belong to the category of **Frigidoreceptors**.

### Final Answer:
The end bulbs of Krause in skin belong to the category of **Frigidoreceptors**.