Olympus BioScapes International Digital Imaging Competition 2011

Mast cell in human eye with conjunctivitis. This image shows a single mast cell invading conjunctival tissue in response to an inflammatory agent or pathogen. The mast cell contains vesicles of histamine (red dots). Mast cells are among the first cells of the immune system to react to the presence of an invading pathogen and they facilitate the movement of leukocytes (white blood cells) and other immune cells toward the site of infection. Donald Pottle, The Schepens Eye Research Institute, Boston, Massachusetts. (Photo by Olympus BioScapes)
Olympus BioScapes International Digital Imaging Competition 2011
   
  Military Woman Gallery

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