Scanning Electron Micrograph
Osteoblast, or bone-forming cell, growing 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. Visualised using scanning electron microscopy by Dr Guocheng Wang and Dr Zufu Lu, University of Sydney.
Migrating cancer cell. Coloured scanning electron micrograph (SEM) of a cultured cancer cell moving (metastasising) through a hole in a support film. Numerous pseudopodia (arm-like), fillipodia (thread-like) and surface blebs (lumps) can be seen. These features are characteristic of highly mobile cells, and enable cancerous cells to spread rapidly around the body, and invade other organs and tissues (metastasis). #anatomy #microscope #microscopic #medicine #medical #human
Peyer's patches (green), coloured scanning electron micrograph (SEM). These regions of lymphoid tissue are found in the human intestine, usually in the ileum, the final section of the small intestine. Their function is to defend against infection in the intestines, where large numbers of pathogenic microbes are found. #microscope #photography #human
Brain tumour. Coloured scanning electron micrograph (SEM) of a glioma, a type of tumour that arises from glial cells of the central nervous system. The most common site for gliomas is the brain. They can be either low or high-grade, with the latter having the worse prognosis. Magnification: x8000 when printed at 10 centimetres wide. Credit: STEVE GSCHMEISSNER
Lung alveoli and bronchus. Coloured Scanning Electron Micrograph (SEM) of lung tissue, showing alveoli, a bronchus, and a pulmonary blood vessel. At right is a bronchus (blue), a branching air tube. Beside it is a blood vessel (red) with smooth endothelial surface through which blood passes. Lung tissue (yellow) has a spongy appearance, and is made up of alveoli air sacs whose interstital walls are lined with blood capillaries. Air passes from the bronchus into alveoli where the gases of carbon