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Tooth - Anatomy & Physiology (view source)
Revision as of 00:28, 27 March 2011
, 00:28, 27 March 2011→Main Cells
==Main Cells==
==Main Cells==
[[Image:Ameloblast Histology.jpg|thumb|right|150px|Ameloblast Histology - Copywright RVC 2008]]
[[Image:Ameloblast Histology.jpg|thumb|right|150px|Ameloblast Histology - Copywright RVC 2008]]
===Ameloblasts===
===Ameloblasts===
'''Ameloblasts''' are cells in the enamel organ which forms the tooth. They secrete '''[[Enamel Organ#Enamel|enamel]]'''.
'''Ameloblasts''' are cells in the enamel organ which forms the tooth. They secrete '''[[Enamel Organ#Enamel|enamel]]'''.
The first layer of [[Enamel Organ#Dentine|dentine]] is formed on the enamel organ. As production increases, the odontoblasts are displaced from the [[Enamel Organ#Enamel|enamel]]. It is a major part of the tooth structure and is produced continually by the odontoblasts. The rate of [[Enamel Organ#Dentine|dentine]] synthesis is increased during repair as it is innervated (but still acellular).
The first layer of [[Enamel Organ#Dentine|dentine]] is formed on the enamel organ. As production increases, the odontoblasts are displaced from the [[Enamel Organ#Enamel|enamel]]. It is a major part of the tooth structure and is produced continually by the odontoblasts. The rate of [[Enamel Organ#Dentine|dentine]] synthesis is increased during repair as it is innervated (but still acellular).
===Cementoblasts ===
'''Cementoblasts''' are cells in the '''[[Enamel Organ#Enamel|enamel]]''' organ which forms the tooth. They secrete '''[[Enamel Organ#Cementum|cementum]]'''.
Epithelial cells are present near the distal end of the cup. They become follicle cells. '''Cementoblasts''' synthesise [[Enamel Organ#Cementum|cementum]] which mostly contains '''collagen I'''.
[[Enamel Organ#Cementum|Cementum]] surrounds the '''[[Enamel Organ#Dentine|dentine]]''' of the [[Enamel Organ#Root|root]]. [[Enamel Organ#Cementum|Cementum]] is acellular and not readily absorbed.
==Test yourself ==
==Test yourself ==