
How the Immune System Works
12th Grade · Science · 90 min· Nys
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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.


