Immune System, part 2: Crash Course A&P

The video explains the adaptive immune system, focusing on humoral immunity and the role of B cells and antibodies. It discusses how the immune system identifies and responds to pathogens, the process of B cell activation, and the production of antibodies. The video also covers the differences between active and passive immunity, highlighting the importance of vaccinations. It concludes with a summary and a preview of the next episode.

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