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Highly Magnified Section through the Wall of a Circumvallate Papilla of the Tongue, showing Two Taste-Bulbs.

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Highly Magnified Section through the Wall of a Circumvallate Papilla of the tongue.jpg ThumbnailsDiagram showing the Relative Positions of the Organs of the Chest and Abdomen.ThumbnailsDiagram showing the Relative Positions of the Organs of the Chest and Abdomen.ThumbnailsDiagram showing the Relative Positions of the Organs of the Chest and Abdomen.ThumbnailsDiagram showing the Relative Positions of the Organs of the Chest and Abdomen.ThumbnailsDiagram showing the Relative Positions of the Organs of the Chest and Abdomen.ThumbnailsDiagram showing the Relative Positions of the Organs of the Chest and Abdomen.

These sense-organs are groups of elongated epithelial cells, set vertically to the surface. Their cells are of two kinds—the one fusiform, slender, bearing each a bristle-like process which projects through a minute pore left between the superficial cells of the general epithelium; the other thicker and wedge-shaped. Nerve-fibres are connected with the fusiform cells.