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F/colour TEM of a neuro-muscular synaptic junction

F/colour TEM of a neuro-muscular synaptic junction

P360/0094

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Credit

DON FAWCETT / SCIENCE PHOTO LIBRARY DON FAWCETT / SCIENCE PHOTO LIBRARY

Caption

Nerve-muscle junction. False-colour transmission electron micrograph of a neuromuscular synapse, the junction between a motor neurone axon (nerve fibre) & a muscle fibre. At centre (yellow) is the end of the nerve, closely associated with a muscle fibre (red, at left). Small vesicles inside the nerve contain neurotransmitter chemicals clustered near to the muscle. A nerve impulse travelling up the nerve causes neurotransmitter chemicals to pass across the gap (synaptic cleft) separating nerve from muscle; the chemicals stimulate or inhibit muscle receptors. A Schwann cell (brown) provides the nerve with structural and metabolic support. Magnification: x9,800 at 35mm size.

Release details

Model release not required. Property release not required.

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