Myelinated nerve, TEM C016 / 5370
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Myelinated nerve, TEM C016 / 5370
Myelinated nerve. Transmission electron micrograph (TEM) of a section through a myelinated nerve fibre and Schwann cell (centre). Myelin (black) is an insulating fatty layer that surrounds the nerve fibre (axon), increasing the speed at which nerve impulses travel. It is formed when Schwann cells (dark grey) 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
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 9206133
© P. NAVARRO, R. BICK, B. POINDEXTER, UT MEDICAL SCHOOL/SCIENCE PHOTO LIBRARY
Axon Cytoplasm Endoneurium Fatty Fibre Fibres Insulated Insulating Insulation Micrograph Microscope Myelin Myelinated Nerve Nerve Fibre Nervous Neurolemma Neuron Neurone Neuroscience Phospholipid Schwann Cell Sheath Sheath Of Schwann Sheathed System Transmission Electron Transmission Electron Micrograph Neurological Neurology
EDITORS COMMENTS
This print showcases the intricate beauty of a myelinated nerve, captured through a transmission electron microscope. The image reveals the complex structure of a myelinated nerve fibre and its relationship with Schwann cells. Myelin, depicted in striking black, forms an insulating fatty layer that envelops the nerve fibre or axon, enhancing the speed at which nerve impulses travel. The process of myelination is visually represented as dark grey Schwann cells elegantly wrapping around the fibre and depositing layers of myelin between each coil. The outermost layer consists of the cytoplasm of these specialized cells and is referred to as either neurolemma or sheath of Schwann. This photograph provides insight into the remarkable biological system that enables efficient communication within our bodies. It highlights how this natural insulation mechanism plays a crucial role in maintaining healthy neural function. Through its monochrome composition, this image emphasizes both the delicate nature and resilience found within our nervous system. Its scientific significance lies in contributing to fields such as neurology, neuroscience, and cell biology by providing researchers with valuable insights into neuronal structures. Captured by P. Navarro, R. Bick, and B. Poindexter from UT Medical School/Science Photo Library; this mesmerizing print serves as a testament to human curiosity about our own anatomy while showcasing the inherent beauty hidden within microscopic worlds.
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