nt depression whichis relatively unimportant. In D the enamel organs are connected withthe dental ridges by slender necks of epitheUal tissue which subsequentlybecome severed. At about eleven weeks all the papillae and enamelorgans of the deciduous teeth have formed. The permanent teeth developfrom… … ■ Fic. 75-Part of a sagittal section of a humanembryo, to sliow the position ofthe dental ridges, D. R.; M.,mouth; Md., mandible; My.,niaxilla; N., median nasal sep-tum ; P., palate. Digitized by Microsoft® TEETH. 69 appear on the laljial side of the deep portion of the dental ridge, as shownin…
Histology · Microscopy
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
