Question

match the following terms or phrases with the lines of defense in the human immune system.
note: labels may be used more than once.
drag each item on the left to its matching item on the right. note that every item may not have a match, while some items may have more than one match.
first line of defense
salivary enzymes antipathogenic
skin
first identifies self versus nonself
inflammation phagocytes
salivary enzymes specific response
antipathogenic skin antibodies
second line of defense
inflammation phagocytes
first identifies self versus nonself
third line of defense
specific response antibodies

Explanation:

The first line of defense includes physical/chemical barriers (skin, salivary enzymes) with antipathogenic properties. The second line involves non-specific innate responses (inflammation, phagocytes) and initial self/nonself recognition. The third line is adaptive with specific responses and antibodies.

Answer:

First line of defense: salivary enzymes, antipathogenic, skin
Second line of defense: inflammation, phagocytes, first identifies self versus nonself
Third line of defense: specific response, antibodies