Archive image from page 229 of Cunningham's Text-book of anatomy (1914). Cunningham's Text-book of anatomy cunninghamstextb00cunn Year: 1914 ( 196 OSTEOLOGY. In viewing the skeleton of the face the observer is struck with the large proportionate size of the orbital and nasal apertures. The former are circular in outline, with sharp crisp margins. Under cover of the zygomatic process of the frontal bone the roof and lateral wall of the orbit is deeply recessed. The fossa sacci lacrimalis is oftentimes directed more towards the facial aspect than towards the orbital cavity. The superior and inf
Archive image from page 229 of Cunningham's Text-book of anatomy (1914). Cunningham's Text-book of anatomy cunninghamstextb00cunn Year: 1914 ( 196 OSTEOLOGY. In viewing the skeleton of the face the observer is struck with the large proportionate size of the orbital and nasal apertures. The former are circular in outline, with sharp crisp margins. Under cover of the zygomatic process of the frontal bone the roof and lateral wall of the orbit is deeply recessed. The fossa sacci lacrimalis is oftentimes directed more towards the facial aspect than towards the orbital cavity. The superior and inferior orbital fissures are proportionately large, and the latter, in the macerated skull, forms a wide channel of communication with the fossa infratemporahs. The nasal aperture, apertura piriformis, is cordate in form, and exhibits a greater proportionate width than is met with in the. adult; its inferior margin is not far beneath the level of the inferior orbital margins. The vertical depth of the inaxillas is small, and as yet the processus alveolaris is imperfectly developed, its inferior edge lying but little below the level of the inferior border of the arcus zygomaticus. Sunk in the alveolar border at this Position of fonticulus frontalis Tuber parietale Cartilaginous nasal septum 'IB Position of fonticulus occipitalis Suture between and supra-occipital parts of occipital bone Fonticulus mastoideus Fig. 183.—Lateral Aspect of the Skull at Birth. stage may be seen the relatively large hollows in which the dental sacs are lodged. Within the body of the maxilla the maxillary sinus is represented by a shallow groove, disposed in relation to the middle meatus of the nose. For this reason the space separating the orbital floor from the palatine surface of the bone is small, but is later increased to its adult proportions by the enlargement of the maxillary sinus and the consequent expansion of the body of the maxilla. Viewed from the inferior surface, the
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