Credit: TIMELAPSE VISION INC/SCIENCE PHOTO LIBRARY

Caption: Mast cell degranulation. Light microscopy footage of the degranulation of mast cells, the process by which they release chemicals when activated. Mast cells are a type of white blood cell that are found in connective tissue. Within the cell's cytoplasm are granules containing chemical mediators, including histamine and heparin. When the mast cell is activated, either by an allergic reaction or in response to injury or inflammation, these granules are released into the tissues. Histamine is responsible for the symptoms of an allergic reaction. It causes pain and itching, dilates capillaries and makes them more permeable, leading to red skin and swelling. Heparin is an anticoagulant, it prevents blood from clotting.

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Keywords: allergic reaction, allergy, asthma, biochemical, biochemistry, biological, biology, cell biology, cellular, clip, cytology, degranulation, film, footage, hay fever, heparin, histamine, immune response, immunological, immunology, inflammatory response, light microscopy, live-imaging, mast cell, medical, medicine, micrograph, motion, no-one, nobody, pollen, pollen allergy, pollinosis, video

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Mast cell degranulation, light microscopy

K005/7820 Rights Managed

Downloadable master

Duration: 00:00:28.01

Frame size: 1920x1080

Frame rate: 29.97

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 706.3M

Original

Capture format: Canon EOS 5D Mark II

Codec: Apple ProRes 422 (HQ)

Please contact Science Photo Library if you require the original, or other formats.

 

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