. Elements of the comparative anatomy of vertebrates. Anatomy, Comparative. OLFACTORY ORGAN 205 It is supported by an outward cartilaginous septum nasi which arises from the eth- moid, as well as by other secondarily independent car- tilages {ali-nasals) which were primarily continu- ous with the general carti- laginous wall, but become differentiated from the latter in various ways in accordance with the â varied functional adaptations which the outer nose undergoes. Thus it may be provided with a special valvular ap- paratus for closing the lios- trils (aquatic Mammals); or may grow out to f
. Elements of the comparative anatomy of vertebrates. Anatomy, Comparative. OLFACTORY ORGAN 205 It is supported by an outward cartilaginous septum nasi which arises from the eth- moid, as well as by other secondarily independent car- tilages {ali-nasals) which were primarily continu- ous with the general carti- laginous wall, but become differentiated from the latter in various ways in accordance with the â varied functional adaptations which the outer nose undergoes. Thus it may be provided with a special valvular ap- paratus for closing the lios- trils (aquatic Mammals); or may grow out to form a longer or shorter trunk provided with a complicated musculature (Mole, Shrew, Pig, Tapir, Elephant), and, by means of its abundant nerve-supply, serve as a delicate organ of touch and even as a prehensile appar- atus. extension of the nasal bones and by the J n. Fig. 163, c.âTkansvekse Vertical Section THROUGH THE NaSAL OF MaX. /, //, ///, inferior (maxillary), middle, and superior turbinal; a, h, i:, inferior, middle, and superior nasal passage; S, septum nasi; J, J, position of rudimentary Jacob- son's organs, which are situated nearer the floor of the cavity than is indicated in the figure; *, point at which the naso-lachrymal duct opens ; +, entrance into the maxillary sinus (Cm); SL, ethmoidal labyrinth ; JIG, hard palate ; C. cr, cranial cavity ; J/, maxilla ; Or, wall of orbit. a J) E F. 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 Wiedersheim, Robert, 1848-1923; Parker, William Newton, 1857-1923. London, Macmillan
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectanatomycomparative
