Anatomy & Physiology › Section S · The lymphatic and immune system › Topic S.3
Adaptive immunity: T cells, B cells, and antibodies
Catch measles once and you are almost always protected for life. That lasting, pinpoint protection is the work of the adaptive immune system, whose T cells and B cells learn the exact shape of an invader, multiply into an army and leave memory cells behind.
In this topic
- Specific, adaptable and with memory
- Receptors and presentation
- Education in the thymus
- Clonal selection and expansion
- Worked example: how big can a clone get?
- Helper, cytotoxic and regulatory T cells
- B cells and plasma cells
- Antibody structure and classes
- Worked example: reading two antibody responses
- Active and passive immunity
- Common mistakes to avoid
- Key takeaways
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