Question

According to IIA, the three line of defense are:

Answer 1

The three lines of defense according to IIA are: the first line of defense-physical and chemical barriers, the second line of defense-inflammatory response, and the third line of defense-adaptive immune system.

Step-by-step explanation:

The three lines of defense according to IIA are:

1. The first line of defense includes physical and chemical barriers that prevent pathogens from entering the body. Examples include the skin, mucous membranes, and stomach acid.
2. The second line of defense activates when the first line is breached. It includes inflammatory response and immune cells like macrophages and neutrophils.
3. The third line of defense is the adaptive immune system, which produces antibodies and T cells to specifically target and eliminate pathogens.