Q: What serves as a first responder to pathogenic threats that bypass natural physical and chemical barriers of the body?


Read this paragraph and choose the correct option from the provided answers:

CHAPTER SUMMARY 42.1 Innate Immune Response The innate immune system serves as a first responder to pathogenic threats that bypass natural physical and chemical barriers of the body. Using a combination of cellular and molecular attacks, the innate immune system identifies the nature of a pathogen and responds with inflammation, phagocytosis, cytokine release, destruction by NK cells, and/or a complement system. When innate mechanisms are insufficient to clear an infection, the adaptive immune response is informed and mobilized.

 Choices:

- cells immune system

- super immune system

- immense immune system

- innate immune system


A:
innate immune system