Tonsil, light micrograph

Tonsil, light micrograph

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Credit: STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Caption: Tonsil. Light micrograph of a section through the surface of a tonsil, showing a lymphoid nodule (purple). Tonsils are lymph nodes, which filter pathogens from tissue fluid. The lymphoid nodules house the immune system's B cells (B lymphocytes, a type of white blood cell) and antibodies. At top is the upper surface of the tonsil, which consists of stratified squamous epithelial cells (yellow), which are flat and scale-like in structure.

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Keywords: anatomical, anatomy, b cells, b lymphocytes, biological, biology, cell, coloured, epithelial cells, epithelium, false-colour, false-coloured, healthy, histological, histology, human body, immune system, light micrograph, light microscope, lm, lymph node, lymphatic, lymphoid, mouth, nodule, nodules, normal, oral cavity, section, sectioned, slice, stratified squamous, surface, throat, tissue, tonsil, tonsillar, tonsils

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