The Complement System Made Easy

The video tutorial by Leslie Samuel from Interactive Biology TV explains the complement system, a part of the immune response involving proteins made in the liver and activated in the blood. It covers the classical and alternative pathways, detailing how proteins like C1 to C9 interact to destroy pathogens. The classical pathway starts with an antigen-antibody complex, while the alternative pathway begins with C3 binding directly to the pathogen. Both pathways recruit phagocytes, tag pathogens for destruction, and form a membrane attack complex to eliminate pathogens. The video concludes with a preview of the next topic on T cells.

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