How the Immune System Works

How the Immune System Works

12th Grade · Science · 90 min· Nys

Lesson Preview

Learning Objective

I can analyze how the innate and adaptive immune systems interact to protect the body from pathogens.

  • 1

    The innate immune system is nonspecific, meaning it responds to general threats without recognizing specific pathogens.

  • 2

    Lymphocytes, including B cells and T cells, are the main actors in the adaptive immune system, which develops after exposure to antigens.

  • 3

    B lymphocytes participate in the humoral response, which targets pathogens in bodily fluids, while T lymphocytes participate in the cell-mediated response, which targets infected cells.