. Smell, taste, and allied senses in the vertebrates . Senses and sensation; Vertebrates. ANATOMY OF THE GUSTATORY ORGAN 117. human material and by Heidenhain (1914) in the rabbit. 5. Cellular Composition of Taste-buds. The cells composing the taste-buds are so arranged as to give each bud somewhat the appearance of a flower bud or of a leaf bud not yet unfolded. As has been stated already, these end-organs were described in the skin of fishes as early as 1851 by Leydig and were subsequently simultaneously and independently discovered in the mouths of the higher vertebrates *by Loven (1867) an
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. Smell, taste, and allied senses in the vertebrates . Senses and sensation; Vertebrates. ANATOMY OF THE GUSTATORY ORGAN 117. human material and by Heidenhain (1914) in the rabbit. 5. Cellular Composition of Taste-buds. The cells composing the taste-buds are so arranged as to give each bud somewhat the appearance of a flower bud or of a leaf bud not yet unfolded. As has been stated already, these end-organs were described in the skin of fishes as early as 1851 by Leydig and were subsequently simultaneously and independently discovered in the mouths of the higher vertebrates *by Loven (1867) and by Schwalbe (1867). The older workers usually distinguished in the taste- buds two classes of cells, taste- cells, which were supposed to be chiefly central in position, and supporting cells mainly on the exterior of the bud. Each taste-cell is an attenuated delicate structure whose elongate nucleus forms a slight enlargement near the middle of the cell-body (See Fig. 31a). Distal to it narrows to a delicate process, the taste hair. This hair either projects out of the pore into the exterior or into the canal when that is present. Proximal to the nucleus the taste-cell extends into the deeper part of the bud there to terminate usually in a small rounded knob. The number of taste-cells in a bud varies from two or three to as many as the contained supporting cells, per- haps ten or more. Beside the taste-cells proper Schwalbe (1867) de- scribed what he believed to be a second form of receptive Fig. 29.—A simple taste-bud from a foliate papilla of the rabbit. After Heidenhain, 1914, Plate 19, Fig. 5.. 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 work.. Parker, George Howard, 1864-1955. Philadelphia ; London : J. B. Lippincott Company