Myelinated nerves, SEM C013 / 7141

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Myelinated nerves, SEM C013 / 7141

Myelinated nerves. Coloured scanning electron micrograph (SEM) of a section through the sciatic nerve, showing the myelinated nerve fibres (axons). Myelin is an insulating fatty layer (red) that surrounds the nerve fibre (brown), 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. The outermost layer consists of the Schwann cells cytoplasm and is known as the neurolemma or sheath of Schwann. Magnification: x1350, when printed 10 centimetres wide

Science Photo Library features Science and Medical images including photos and illustrations

Media ID 9198689

© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Axon Colored Cytoplasm Endoneurium Fatty Fibre Fibres Insulated Insulating Insulation Myelin Myelinated Nerve Neurolemma Neuron Neurone Neurones Neurons Neuroscience Phospholipid Schwann Cell Sheath Sheath Of Schwann Sheathed System Cells Nervous System Neurological Neurology Section Sectioned

EDITORS COMMENTS
This photo print, titled "Myelinated nerves" offers a mesmerizing glimpse into the intricate world of our nervous system. Captured using a scanning electron microscope (SEM), this coloured image showcases a section through the sciatic nerve, revealing an array of myelinated nerve fibres. The vibrant red hues represent the myelin sheath, an insulating fatty layer that envelops each nerve fibre in order to enhance the speed at which nerve impulses travel. As we delve deeper into understanding neurology and neuroscience, it becomes apparent that this complex process is crucial for our body's healthy functioning. Schwann cells play a vital role in forming myelin by wrapping around the nerve fibre and depositing multiple layers between each coil. The outermost layer, known as the neurolemma or sheath of Schwann, consists of their cytoplasm. This microscopic view magnified 1350 times reveals these intricate details with astonishing clarity. Beyond its scientific significance, this image serves as a reminder of nature's remarkable design and complexity. It highlights how even on such minuscule scales, beauty can be found within biological systems. Whether you have an interest in biology or simply appreciate artistry at its finest, this stunning print will undoubtedly captivate your imagination and spark curiosity about the wonders hidden within us all.

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