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Image for: Swallowing triggers a feeling of elation


Larvae of the fruit fly Drosophila have a kind of stretch sensor in the esophagus (grey structure in the middle) that reports swallowing processes to the brain. If food is ingested, special neurons (red) release serotonin.
Larvae of the fruit fly Drosophila have a kind of stretch sensor in the esophagus (grey structure in the middle) that reports swallowing processes to the brain. If food is ingested, special neurons (red) release serotonin.

Image: Dr. Anton Miroschnikow/University of Bonn

(486 KB, 2700 x 1836 pixels)

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