Medical Terminology / Unit 8 MedTerm 0497 short lesson, about 20 seconds
An Allergy
Captions available
The idea
An allergy is an exaggerated immune response to a substance most people tolerate.
In practice
An allergen is the substance provoking the response.
Where people slip
An allergy is a response to something harmless in itself. That is what separates it from infection.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
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