Human tooth, SEM

Bildnummer 13838865
Human tooth, SEM
Coloured scanning electron micrograph (SEM) of a freeze-fracture through a human tooth. At top is the dentine (grey), the mineralised connective tissue that forms the bulk of the tooth. Below it is a dense network of collagen known as predentine (blue-grey), which will calcify into dentine. Within the dentine are dentine tubules, which have been formed by the cytoplasmic extensions (brown) of odontoblast cells (dentine-producing cells). The odontoblast cells originate in the pulp (bottom) and allow the dentine to rebuild itself. The pulp is at the centre of the tooth and is the living part that contains the blood vessels (red) and nerves (blue). Fibroblasts (collagen-producing cells, yellow) are also seen in the pulp. The picture was created as part of a cooperation with Quintessenz Publishing. Magnification: x500 when printed at 15cm wide.
Lizenzart: Lizenzpflichtig
Credit: Science Photo Library / EYE OF SCIENCE
Bildgröße: 4096 px × 3531 px
Modell-Rechte: nicht erforderlich
Eigentums-Rechte: nicht erforderlich
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