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Myelination of nerve fibres, TEM
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Myelination of nerve fibres, TEM
Myelination of nerve fibres. Coloured transmission electron micrograph (TEM) of Schwann cells (red, with blue nuclei) insulating nerve fibres (axons, orange) with a myelin sheath. The axons are seen in cross-section. Myelin (not seen) is an insulating fatty layer that surrounds axons, increasing the speed at which nerve impulses travel. It is formed when Schwann cells wrap around the fibre, depositing layers of myelin between each coil
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6421826
© THOMAS DEERINCK, NCMIR/SCIENCE PHOTO LIBRARY
Axon Cytoplasm Endoneurium Fatty Fibre Fibres Insulated Insulating Insulation Micrograph Myelin Myelinated Myelination Nerve Nerve Fibre Nervous Neurolemma Neuron Neurone Neuroscience Phospholipid Schwann Cell Sheath Sheath Of Schwann Sheathed System Transmission Electron Transmission Electron Microscope False Coloured Neurological Neurology
EDITORS COMMENTS
This print from Science Photo Library showcases the intricate process of myelination in nerve fibres. In this coloured transmission electron micrograph (TEM), we are given a glimpse into the world of Schwann cells, represented in vibrant red with their blue nuclei. These remarkable cells play a crucial role in insulating nerve fibres, which are depicted as orange axons seen in cross-section. The true marvel lies within the unseen myelin sheath, an insulating fatty layer that envelops and protects these axons. Myelin is essential for increasing the speed at which nerve impulses travel through our body's intricate nervous system. It forms when Schwann cells wrap themselves around each fibre, meticulously depositing layers of myelin between each coil. As we delve deeper into this image, it becomes evident that every aspect serves a purpose – from the colourful representation to the detailed structure captured by TEM. The complexity of our biological makeup is beautifully highlighted here; it reminds us of how interconnected and delicate our human body truly is. This photograph not only offers insight into neurology and neuroscience but also sparks wonder about the wonders hidden within ourselves. It invites us to appreciate both the simplicity and complexity found within nature's design while emphasizing how vital understanding these processes can be for medical advancements and treatments.
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