The origin and formation of the dental follicle : The first memoir on the development of the teeth / By Drs. Ch. Legros and E. Magitot. A translation from the French, with introduction and notes, by M.S. Dean. Authorized and rev. by Dr.Magitot, the surviving author.

  • Legros, Charles, 1834-1873.
Date:
1880
Catalogue details

Licence: Public Domain Mark

Credit: The origin and formation of the dental follicle : The first memoir on the development of the teeth / By Drs. Ch. Legros and E. Magitot. A translation from the French, with introduction and notes, by M.S. Dean. Authorized and rev. by Dr.Magitot, the surviving author. Source: Wellcome Collection.

Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.

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    Fig. 38.—From the lower jaw of an ovine embryo, mag- nified 80 diameters; showing the completed dental follicle and the sun-ounding tissues. a, Meckel's cartilage; b, traces of ossification; c, lowest layer of the epithelial cells; d, oral epithelium; F, amelo- blastic layer; F, (lower) external layer of the enamel-organ— a continuation of the layer of ameloblasts; g, stellate retic- ulum of the enamel-organ; H, bulb; 7, follicular wall; K, buddings from the cord. Fig. 39.— From a human embryo, 20 centimetres [8 inches] in length. (Magnified 80 diain.) a, Meckel's cartilage; b, bone; c, c, artery and nerve; d, oral epithelium; E, cord of the first permanent molar originating from the lamina; F, debris of the cord of the preceding follicle; g, muscular insertions. (See description, p. 155). Fig. 40.—A section of the skin of a human foetus, 20 centimetres [8 inches]; about the seventeenth week of gestation; showing the complete analogy in the develop- ment of the hair and the teeth. .«, Filous follicle quite well developed, with its bulb forcing back the epithelial cells and forming a cap for itself; b, simple epithelial bourgeon; c, epithelial bourgeon, with the bulb just appearing.