Pathology · Immune System · Easy

Allergen

Meaning: Usually harmless substance, such as pollen or peanut, that triggers an exaggerated immune reaction in a sensitised person.

In practice: Peanut was confirmed as the allergen responsible for her reaction.

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Two questions on related pathology words.

Which word means: A blood clot that forms inside a blood vessel and obstructs flow.

Which word means: Complete failure of an organ or body part to develop during embryonic growth.

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