. Smell, taste, and allied senses in the vertebrates . Senses and sensation; Vertebrates. 116 SMELL, TASTE, ALLIED SENSES where compound buds with as many as six pores have been identified. The frequency with which types of buds with different numbers of pores occur may be gathered from the enumeration by Heidenhain who found that in 509 taste-buds from the foliate papillsB of the rabbit 368 had one pore, 100 two pores, 29 three pores, 7 four. Fio. 28.—Lateral view of the catfish, Amiurus melas, showing in black the gustatory branches of the facial nerve. After Herrick, 1903, Fig. 3. pores, 1
. Smell, taste, and allied senses in the vertebrates . Senses and sensation; Vertebrates. 116 SMELL, TASTE, ALLIED SENSES where compound buds with as many as six pores have been identified. The frequency with which types of buds with different numbers of pores occur may be gathered from the enumeration by Heidenhain who found that in 509 taste-buds from the foliate papillsB of the rabbit 368 had one pore, 100 two pores, 29 three pores, 7 four. Fio. 28.—Lateral view of the catfish, Amiurus melas, showing in black the gustatory branches of the facial nerve. After Herrick, 1903, Fig. 3. pores, 1 five pores, and 4 six pores. In the compound buds the pores usually form a more or less linear series and as each pore represents a single element in the com- plex the whole gives the impression of a row of fused buds (Fig. 30.) These compound buds are believed to result from a process of imperfect division. Some taste-buds open directly on the oral surface where they are located; others are marked by a pore, the outer taste-pore, which leads into a short canal and this in turn ends at the inner taste-pore formed by the distal end of the bud itself. Von Ebner (1897) noted that in some instances the canal expanded into a small chamber or ampulla over the tip of the bud and, though Graberg (1899) could not confirm this statement for man, the condition has been observed anew by Kallius (1905) in. 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
