Which of the following differs from others

Options

A. asthma
B. arthritis
C. Psoriasis
D. Grave's disease

Answer

To solve the question "Which of the following differs from others: Asthma, arthritis, psoriasis, or crevices?", we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Conditions**: We have four conditions to analyze: Asthma, Arthritis, Psoriasis, and Crevices.

2. **Classify the Conditions**:
- **Asthma**: This is primarily a respiratory condition characterized by inflammation and narrowing of the airways, often triggered by allergens or irritants. It is related to an overreaction of the immune system but is not classified as an autoimmune disease.
- **Arthritis**: This is an autoimmune disease where the immune system attacks the joints, leading to inflammation and pain.
- **Psoriasis**: This is also an autoimmune disease characterized by rapid skin cell growth, leading to scaling and inflammation.
- **Crevices**: This term is less commonly used in medical terminology but may refer to a condition related to skin or mucosal fissures. If considered as a skin condition, it may also be autoimmune in nature.

3. **Determine the Differences**:
- The key difference lies in the classification of these diseases. Asthma is an immune system overreaction, while arthritis and psoriasis are autoimmune diseases where the immune system attacks the body's own cells.

4. **Conclusion**: Based on the classification, we can conclude that **Asthma** is the condition that differs from the others because it is not an autoimmune disease.

### Final Answer:
Asthma differs from the others (Arthritis, Psoriasis, and Crevices) as it is not an autoimmune disease.

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