Name any two types of cells which act as "Cellular barriers" to provide Innate Immunity in humans.

Explanation

**Step-by-Step Solution:**

1. **Understanding Immunity**: Begin by defining immunity as the ability of an organism to resist pathogens, which are foreign particles that enter the body.

2. **Types of Immunity**: Recognize that there are two main types of immunity:
- **Innate Immunity**: This is the immunity that a person is born with. It is non-specific and acts as the first line of defense against pathogens.
- **Acquired Immunity**: This type develops over time, usually after exposure to specific pathogens, and involves memory cells that remember past infections.

...