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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 (blue, with brown nuclei) insulating nerve fibres (axons, pink) 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 6421820
© 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 granted a glimpse into the fascinating world of biology and neurology. The image features Schwann cells, depicted in a striking blue hue with their brown nuclei, meticulously insulating the delicate nerve fibres or axons that appear in a soft pink shade. The cross-section view allows us to witness the myelin sheath surrounding these axons, although the actual myelin layer remains unseen. Myelin, an essential fatty layer enveloping axons, plays a crucial role in enhancing the speed at which nerve impulses travel throughout our body's nervous system. This insulation is formed when Schwann cells wrap themselves around each fibre and deposit multiple layers of myelin between every coil. As we explore this visually stunning micrograph further, it becomes evident how intricately interconnected our biological systems truly are. The image highlights not only the complex anatomy of nerves but also emphasizes their vital function within our human bodies. With its false-coloured representation and captured through a transmission electron microscope (TEM), this print provides an awe-inspiring insight into neuroscience and neuron structure. It serves as a reminder of both the beauty and complexity found within our own cellular makeup – an exquisite testament to nature's ingenuity.
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