When there is a cut in the skin and bacteria enter the body, the immune system responds. First, macrophages approach the area of the cut. Next, the macrophages surround any bacterial cells and engulf them. What feature of the immune system is best described by this scenario?

A.

self-recognition, which is a part of adaptive immunity

B.

antigen specificity, which is a part of adaptive immunity

C.

the phagocytotic barrier, which is a part of innate immunity

D.

the inflammatory barrier, which is a part of innate immunity

The phagocytotic barrier, which is a part of innate immunity best describes the above scenario.

Answer: Option C

Explanation:

The largest organ of the body is the skin, similarly the skin also an immune barrier to the body. If there is any damage in the skin, its pH gets compromised and there it calls in for a microbial attack.

When there is a cut in the skin and bacteria enter the body, the immune system responds. First, macrophages approach the area of the cut. Next, the macrophages surround any bacterial cells and engulf them, the Phagocytosis barrier which is the part of the innate immunity