Fever, PH and body secretions are included in which of the following barrier .

Options

A. Physical
B. Cellular
C. Cytokine
D. Physiological

Answer

To answer the question "Fever, pH, and body secretions are included in which of the following barriers?", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Types of Barriers**: The human body has various defense mechanisms against pathogens, which can be categorized into different types of barriers. These include physical barriers, physiological barriers, and cellular barriers.

2. **Identify Physical Barriers**: Physical barriers are the first line of defense and include structures like the skin and mucous membranes. These barriers prevent the entry of pathogens into the body.

3. **Define Physiological Barriers**: Physiological barriers are mechanisms that involve body secretions and internal processes that help in defending the body against infections. This includes factors like pH levels, body secretions (such as sweat, saliva, and mucus), and fever.

4. **Analyze the Components**: The question specifically mentions fever, pH, and body secretions.
- **Fever**: An increase in body temperature that helps to inhibit the growth of pathogens.
- **pH**: The acidity or alkalinity of body fluids, such as gastric acid (HCl) in the stomach, which can kill pathogens.
- **Body Secretions**: These include sweat, sebum, and other fluids that can have antimicrobial properties.

5. **Conclusion**: Since fever, pH, and body secretions are all part of the body's internal defense mechanisms that help fight infections, they fall under the category of physiological barriers.

6. **Final Answer**: Therefore, the correct answer to the question is that fever, pH, and body secretions are included in the **physiological barrier**.