Lung lining. Color-enhanced scanning electron micrograph (SEM) of a section through epithelial cells of the terminal bronchus (lung airway). Some of the cells are covered in cilia, tiny microscopic hairs. Rhythmic movements of the cilia serve to move mucus and trapped particles away from the gas-exchanging parts of the lung, and towards the throat, where they can be expelled. Magnification: x10,000 when printed at 10 cm wide.
False colored SEM Immune System at Work White blood cells engulf spores of the fungus
Dendritic cell and lymphocyte, coloured scanning electron micrograph (SEM). Interaction between a dendritic cell (blue) and a T lymphocyte (yellow), two components of the body's immune system. Both are types of white blood cell. T lymphocytes recognise a specific site on the surface of pathogens or foreign objects (antigens),
An osteoblast, or bone-forming cell, grows on a new type of bone scaffold being developed to repair damaged bones. The scaffold is made of calcium oxide and silicon dioxide with added strontium and zinc to help the bone cells to grow better. Scanning electron microscopy by Dr Guocheng Wang and Dr Zufu Lu, University of Sydney (Australian Microscopy and Microanalysis Research Facility)