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Tongue Papillae

Photo: Tongue papillae
Cone-shaped tongue papillae, seen here in a colored scanning electron micrograph, contain nerve endings that receive and transmit touch sensations to the brain. As we begin chewing, the tongue shapes food in a ball-shaped bolus for swallowing.
Photograph by SPL/Photo Researchers, Inc.

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Body: The Complete Human

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The Incredible Human Body DVD and Video

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Explore the human body from the inside out.