HELENE FOURNIE, ISM / SCIENCE PHOTO LIBRARY HELENE FOURNIE, ISM / SCIENCE PHOTO LIBRARY
Taste bud anatomy. Illustration of the anatomical structure of a taste bud on a tongue. The surface of the tongue is at top, with the tastebud (rounded structure) at centre. Either side are tongue epithelial cells, with specialised support cells (pink) at left and right. Chemicals to be sensed enter the taste bud through the opening (gustatory pore, upper centre), and trigger a response in the sensory cells (blue and green). They then pass that response to the nerve dendrites and axon (red). The signals are passed to the brain and interpreted as taste sensations.
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