. Smell, taste, and allied senses in the vertebrates . Senses and sensation; Vertebrates. 94 SMELL, TASTE, ALLIED SENSES area is believed to correspond to the vomero-nasal organ of the higher vertebrates and the lateral area to the true olfactory receptor of these forms. In some amphibians the distinction between a lateral and a median organ is much more evident than in fishes (Fig. 21). The lateral organ is the one that conducts the. Fig. 20.—Diagram of the median face of the left nasal cavity of man; the small circle marks the position of the vomero-nasal organ in the nasal septum. newly est
. Smell, taste, and allied senses in the vertebrates . Senses and sensation; Vertebrates. 94 SMELL, TASTE, ALLIED SENSES area is believed to correspond to the vomero-nasal organ of the higher vertebrates and the lateral area to the true olfactory receptor of these forms. In some amphibians the distinction between a lateral and a median organ is much more evident than in fishes (Fig. 21). The lateral organ is the one that conducts the. Fig. 20.—Diagram of the median face of the left nasal cavity of man; the small circle marks the position of the vomero-nasal organ in the nasal septum. newly established air current from the external naris to the choana and hence corresponds to the olfactory organ proper. The median cavity is less involved in this cur- rent and is beUeved to represent the vomero-nasal organ. In certain sauropsida such as the alligators and tur- tles the vomero-nasal organ has been said to be at best only poorly developed, though so far as turtles are con- cerned this opinion is not shared by one of the most recent workers, McCotter (1917). In birds the organ is claimed to be entirely absent, but in lizards and in snakes it is highly differentiated (Fig. 22). Here the olfactory apparatus consists of a well-developed organ. 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 Parker, George Howard, 1864-1955. Philadelphia ; London : J. B. Lippincott Company
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectsensesa, bookyear1922
