Immune System, part 3: Crash Course A&P

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.

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Table of Contents
Helper, Cytotoxic and Regulatory T Cells Attack Compromised Body Cells 4:08
Cytokines Activate B and T Cells 5:00
When Your Immune System Goes Rogue 6:15
Autoimmune Trouble 7:27