Immune System, Part 3: Crash Course Anatomy & Physiology #47

THE FINAL SHOWDOWN! This is the last episode on the immune system and also the very last episode of Crash Course Anatomy & Physiology. In it, Hank explains how the cellular immune response uses helper, cytotoxic, and regulatory T cells to attack body cells compromised by pathogens. He also explores how cytokines activate B and T cells, and what happens if your immune system goes rogue and starts causing autoimmune trouble.

Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!

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Chapters:
Introduction: Cells Fight Cells 00:00
Professional Antigen Presenting Cells 1:46
Helper T Cells 4:00
Cytotoxic T Cells 5:23
Immunodeficiencies 6:08
Autoimmune Disorders 7:27
Review 8:26

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