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Myelinated nerve, light micrograph
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Myelinated nerve, light micrograph
Myelinated nerve. Light micrograph of a section through a peripheral myelinated nerve, showing many individual axons each covered with deep blue-staining myelin sheaths. Myelin is a lipid (fat)-rich layer of concentric plasma membranes that insulate the nerve and enhance the speed of nerve impulses. Cell nuclei mixed in between the axons are the Schwann cells which produce the myelin. The whole nerve fibre is enclosed by supporting tissue called the perineurium. Magnification: x150 when printed 10 centimetres wide
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Media ID 9247121
© MICROSCAPE/SCIENCE PHOTO LIBRARY
Axon Axons Cell Biology Cytological Cytology Fatty Fibre Fibres Histological Histology Lipid Membranes Myelin Myelinated Nerves Neuron Neurone Neurones Neurons Neuroscience Nuclei Nucleus Plasma Membrane Schwann Cell Sheath Sheaths Stain Stained Supportive Tissue Tissue Cells Light Micrograph Light Microscope Section Sectioned
EDITORS COMMENTS
This print showcases a myelinated nerve in all its intricate glory. Under the light microscope, we are granted a glimpse into the fascinating world of cellular biology and neuroscience. The deep blue-staining myelin sheaths envelop each individual axon, forming concentric layers that resemble delicate rings of protection. Myelin, a lipid-rich substance, acts as an insulator for the nerve fibers while also enhancing the speed at which nerve impulses travel. Amidst this vibrant display of myelination, scattered cell nuclei can be observed - these are none other than Schwann cells diligently producing the vital myelin sheaths. Serving as guardians to these precious nerves, they play an indispensable role in maintaining their health and functionality. The perineurium gracefully encloses this entire nerve fiber with its supportive tissue, ensuring structural integrity and providing further nourishment to sustain optimal performance. At a magnification of x150 when printed 10 centimeters wide, this image invites us to marvel at the wonders hidden within our own bodies. It is a testament to both the complexity and beauty found within our anatomy – reminding us once again of nature's remarkable design. This stunning photograph from Science Photo Library serves as a reminder that there is always more beneath the surface waiting to be discovered by those who dare to explore it.
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