. The science and practice of dental surgery. maxillary processes are commencing to grow inwards to close off the nasal +1 I ,.0 f tUa from the buccal cavity. tween tue la> ers 01 tue AN, Anterior Nares; E, Eye; NF, Nasofrontal process; MX, Maxillary process; closing membrane ( PP, Palatal process or palate; PD, Hypophysial depression. ectoderm and entO- II. Transverse section of an embryo after the fusion of the palatine processes with derm). This invading each other and with the nasal septum (ethrao-vomerine plate) to close off the nasal mesoderm is merely from the oral cavity. ^ repr
. The science and practice of dental surgery. maxillary processes are commencing to grow inwards to close off the nasal +1 I ,.0 f tUa from the buccal cavity. tween tue la> ers 01 tue AN, Anterior Nares; E, Eye; NF, Nasofrontal process; MX, Maxillary process; closing membrane ( PP, Palatal process or palate; PD, Hypophysial depression. ectoderm and entO- II. Transverse section of an embryo after the fusion of the palatine processes with derm). This invading each other and with the nasal septum (ethrao-vomerine plate) to close off the nasal mesoderm is merely from the oral cavity. ^ represented in the first M, Mouth; T, Tongue; LD, Labio-dental sulcus; DG, Dental germ; MC, Meckels YJggprf^I cleft bv the cartilage; J, Jacobsons organ; NC, Nasal cavity; EV, Ethmo-vomrrine plate. V. c ^ b • > J. t- connective tissue 01 the line of union of the two main portions is indi- I tympanum (substantia propria); and but for thiscated in the adult organ by the vallate papillae, 1 connective tissue and its enclosing membranes. 8 the cleft would be pervious. Should this meso-dermic invasion fail to take place, a branchialfistula results, which may be rendered perviousif the closing membrane subsequently ruirtures,or be blind externally or internally, accorcUngto the stage of niesodermic development.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdentistry, bookyear19
