This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Mast cells. Mast cells are involved in allergy Allergies such as pollen allergy are related to the antibody known as IgE Like other antibodies each IgE antibody is specific one acts against oak pollen another against ragweed niaid nih gov pdf The Immune System pdf NIH Publication No September modifications September Template