Difference between revisions of "Ameloblasts"
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| − | # | + | {{toplink |
| + | |backcolour =BCED91 | ||
| + | |linkpage =Alimentary - Anatomy & Physiology | ||
| + | |linktext =Alimentary System | ||
| + | |maplink = | ||
| + | |sublink1=Oral Cavity - Teeth & Gingiva - Anatomy & Physiology#Anatomy of the Enamel Organ | ||
| + | |subtext1=ANATOMY OF THE ENAMEL ORGAN | ||
| + | }} | ||
| + | <br> | ||
| + | ==Introduction== | ||
| + | |||
| + | Ameloblasts are cells in the enamel organ which forms the tooth. They secrete [[Enamel - Anatomy & Physiology|enamel]]. | ||
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| + | |||
| + | ==Properties== | ||
| + | |||
| + | [[Image:Ameloblast Histology.jpg|thumb|right|150px|Ameloblast Histology - Copywright RVC 2008]] | ||
| + | *Epithelial cells | ||
| + | |||
| + | *Lines the inner surface of the enamel organ | ||
| + | |||
| + | *Derived from epithelium | ||
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| + | *Synthesises [[Enamel - Anatomy & Physiology|enamel]] which forms the [[Crown - Anatomy & Physiology|crown]] of each tooth | ||
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| + | *Maintains connections with the newly synthesised [[Enamel - Anatomy & Physiology|enamel]] through cellular projections called Thomes' fibres | ||
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| + | *[[Enamel - Anatomy & Physiology|Enamel]] is acellular so once the connection with the ameloblasts via the Thomes' fibres is lost (upon eruption), [[Enamel - Anatomy & Physiology|enamel]] matrix cannot be remodelled | ||
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| + | *A single layer of very long columnar cells | ||
| + | |||
| + | *Hexagonal in cross section | ||
| + | |||
| + | *Elongated basally sited nuclei | ||
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| + | [[Category:Alimentary System]] | ||
Revision as of 12:27, 20 August 2010
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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