Difference between revisions of "Ameloblasts"
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m (moved Ameloblasts - Anatomy & Physiology to Ameloblasts) |
m (Text replace - "[[Enamel - Anatomy & Physiology|" to "[[Enamel|") |
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==Introduction== | ==Introduction== | ||
| − | Ameloblasts are cells in the enamel organ which forms the tooth. They secrete [[Enamel | + | Ameloblasts are cells in the enamel organ which forms the tooth. They secrete [[Enamel|enamel]]. |
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*Derived from epithelium | *Derived from epithelium | ||
| − | *Synthesises [[Enamel | + | *Synthesises [[Enamel|enamel]] which forms the [[Crown - Anatomy & Physiology|crown]] of each tooth |
| − | *Maintains connections with the newly synthesised [[Enamel | + | *Maintains connections with the newly synthesised [[Enamel|enamel]] through cellular projections called Thomes' fibres |
| − | *[[Enamel | + | *[[Enamel|Enamel]] is acellular so once the connection with the ameloblasts via the Thomes' fibres is lost (upon eruption), [[Enamel|enamel]] matrix cannot be remodelled |
*A single layer of very long columnar cells | *A single layer of very long columnar cells | ||
Revision as of 19:49, 31 August 2010
Introduction
Ameloblasts are cells in the enamel organ which forms the tooth. They secrete enamel.
Properties
- Epithelial cells
- Lines the inner surface of the enamel organ
- Derived from epithelium
- Maintains connections with the newly synthesised enamel through cellular projections called Thomes' fibres
- Enamel is acellular so once the connection with the ameloblasts via the Thomes' fibres is lost (upon eruption), enamel matrix cannot be remodelled
- A single layer of very long columnar cells
- Hexagonal in cross section
- Elongated basally sited nuclei