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Artwork showing sleeping drug action with face

Artwork showing sleeping drug action with face

M630/0159

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Credit

JOHN BAVOSI / SCIENCE PHOTO LIBRARY JOHN BAVOSI / SCIENCE PHOTO LIBRARY

Caption

Action of sleeping drugs. Artwork of the face of a sleeping woman cut away to show a magnified image of sleeping drugs acting on nerve cells (neurones, upper left & right) in her brain. Two neurones meet at a gap called a synapse (centre). Sleeping drugs like benzodiazepines (yellow & green spheres) mimic the action of the neurotransmitter GABA (gamma-aminobutyric acid, red spheres). When GABA is released by a nerve cell it crosses the synapse and binds with receptors on the other nerve cell (not seen), resulting in the opening of chloride channels. Chloride ions then pass through, making the receptor nerve cell less excitable and aiding sleep.

Release details

Model release not required. Property release not required.

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