Microtubules in Axon, TEM

Microtubules in Axon, TEM

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Caption: Colour-enhanced Transmission Electron Micrograph (TEM) of a longitudinal section of an axon with many microtubules. Axons are easily recognized by their content of smooth endoplasmic reticulum and microtubules. Peripheral nervous system nerves consist of axons enveloped in specialized metabolic and support cells called Schwann cells. Larger axons are wrapped in concentric layers of Schwann cell plasma membrane, the myelin sheath. The rate of conduction of nerve impulses (action potential) is proportional to axon diameter. Myelination greatly increases axon conductivity velocity. Magnification: 100,000x when printed at 5x7 .

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Keywords: axon, biology, cell, cell biology, colorization, colorized, colour enhanced, colour-enhanced, cytoplasm, cytoskeleton, electron micrograph, em, endoplasmic reticulum, enhanced, false colour, histology, microbiology, micrograph, microtubule, nature, nerve, nervous system, neuronal micro-tubule, neuronal microtubule, neurotubule, organelle, organelles, science, smooth endoplasmic reticulum, smooth er, tem, transmission electron micrograph

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