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Lesson 5.1 – Our body’s barriers — the innate immune system

After reviewing the immune structures we saw in Unit 1, we focus on how cells of the innate immune system recognize and respond to pathogens. The immune system is able to ‘see’ the world as ‘self’ and ‘non-self’ via receptors that have evolved to recognize relatively conserved structures in microbes that do not exist in humans. Once they recognize a non-self entity, innate immune cells respond by phagocytosing the threat and sounding the alarm (by releasing cytokines and triggering chemotaxis). Most infections are stopped by innate immune responses!

Teacher Prep

5.1 Classroom Materials

5.1 Alternative Approaches

 
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