Outlines of comparative physiology touching the structure and development of the races of animals, living and extinct : for the use of schools and colleges . 249. The greater *- part of the nose is form-ed by cartilages, so thatL a\ii(jjf in the skull the anterior IRrHiaJMr . ., , - opening or the nasal1 cavity (fig. 98, 29) isvery large, and the^ osseous portion of thenose formed by thetwo small nasal bones(fig. 99, 2), makes aninconsiderable promi-nence. The nasal ca- Anterior boundary. Posterior boundaiy. vitv is divided by avertical partition into two fossse, as seen in fig. 99, 5 and 28,w
Outlines of comparative physiology touching the structure and development of the races of animals, living and extinct : for the use of schools and colleges . 249. The greater *- part of the nose is form-ed by cartilages, so thatL a\ii(jjf in the skull the anterior IRrHiaJMr . ., , - opening or the nasal1 cavity (fig. 98, 29) isvery large, and the^ osseous portion of thenose formed by thetwo small nasal bones(fig. 99, 2), makes aninconsiderable promi-nence. The nasal ca- Anterior boundary. Posterior boundaiy. vitv is divided by avertical partition into two fossse, as seen in fig. 99, 5 and 28,which shews the posterior boundary of the nose ; superiorly it ishollowed out of the ethmoid bone, the interior of which isfull of cells ; and its floor is formed by the superior maxillary. Fig. 100. Fig. 101. [§ 25°- Tne superior maxil-lary bones (figs,100 and 101)contain the teethoftheupperjaw;in infancy thisbone is compos-ed of several ele-ments, one ofwhich, called theintermaxillary,remains as a per-manently dis-tinct bone in monkeys and other quadrupeds, whilst in man it is early sol-dered to the superior maxillary. Fig. 100 shews the internal,. BONES OF THE SKULL. 125
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectzoology, bookyear1870
