Keywords
allergic reaction, anatomy, biological, biology, cell, coloured, connective tissue, cytoplasm, false-coloured, granular, granule, granules, heparin, histamine, human body, hypersensitivity, immune system, immunological, immunology, inflammation, inflammatory, mast cell, mediator, microscope, nucleus, tem, transmission electron, transmission electron micrograph, white blood cell, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, u22481535