Ameloblast
From Health Encyclopedia
Contents |
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Broader Terms
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Related Terms
dental development, dental structure, enamel organ
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Scope Note
cylindrical epithelial cells in the innermost layer of the enamel organ; functions include contribution to the development of the dentinoenamel junction by the deposition of a layer of the matrix, thus producing the foundation for dental enamel, and production of the matrix for the enamel prisms and interprismatic substance.
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Facts (generated by robot; please edit if you find it inaccurate)
- The distal end of the ameloblast is charac- terized either by the presence or by the absence of a striated-like (ruffled) border 1,19 (figs.
- These results suggest that the secretory ameloblast is a highly specialized multifunctional cell in the production, resorption and degradation of enamel matrix and in the active calcium transport essential for matrix mineralization during enamel formation.
- The ameloblast is round or hexagonal in cross section and the enamel rods, which fit tightly together, are keyhole shaped.
- The present study suggests that the secretory ameloblast is able to transport tracer molecules through the intracellular pathway from the proximal and lateral extracellular spaces to the distal extracellular space.
- At this stage the ameloblast is 45 micrometers long, the nucleus is central or basal, the Golgi apparatus has migrated apically, but the Tomes' process has not yet formed.
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