. The development of the human body : a manual of human embryology. Embryology; Embryo, Non-Mammalian. DEVELOPMENT OF THE FACE 99 The region immediately in front of the first arch is occupied by a rather deep depression, the oral fossa, whose early development has already been noticed. In an embryo measuring 8 mm. in length (Fig. 62) the fossa (os) has assumed a somewhat irregular quadrilateral form. Its posterior boundary is formed by the mandibular processes of the first arch, while laterally it is bounded by the maxillary processes (mxp) and anteriorly by the free edge of a median plate, te
. The development of the human body : a manual of human embryology. Embryology; Embryo, Non-Mammalian. DEVELOPMENT OF THE FACE 99 The region immediately in front of the first arch is occupied by a rather deep depression, the oral fossa, whose early development has already been noticed. In an embryo measuring 8 mm. in length (Fig. 62) the fossa (os) has assumed a somewhat irregular quadrilateral form. Its posterior boundary is formed by the mandibular processes of the first arch, while laterally it is bounded by the maxillary processes (mxp) and anteriorly by the free edge of a median plate, termed the nasal process, which on either side of the. Fig. 63.—Face of Embryo after the Completion of the Upper Jaw.—(His.) median line is elevated to form a marked protuberance, the processus globular is (pg). The ventral ends of the maxillary processes are widely separated, the nasal process and the processus globulares intervening between them, and they are also separated from the globular processes by a deep and rather wide groove which anteriorly opens into a circular depression, the nasal pit (np).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original McMurrich, J. Playfair (James Playfair), 1859-1939. Philadelphia : P. Blakiston's son & co.
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Keywords: ., bookautho, bookcentury1900, bookdecade1910, booksubjectembryology
