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Demyelinated nerve in multiple sclerosis
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Demyelinated nerve in multiple sclerosis
Demyelinated nerve in multiple sclerosis. Coloured transmission electron micrograph (TEM) of a section through an axon (a structure that transmits nerve impulses) that has lost its myelin sheath. The axon (blue) has only its Schwann cell (brown) surrounding it. The Schwann cell would normally produce the myelin sheath. A nerves myelin sheath helps it conduct electrical impulses and when the myelin sheath is lost, nerve function is impaired. This is seen in nerve disorders such as multiple sclerosis (MS), where patches (lesions) of myelin sheath are destroyed
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6414936
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
Axon Demyelination Histological Histology Loss Lost Multiple Sclerosis Myelin Nerve Cell Neuron Neurone Pathological Pathology Schwann Cell Sheath Tissue Transmission Electron Microscope Condition Disorder False Coloured
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This print from Science Photo Library showcases the intricate details of a demyelinated nerve in multiple sclerosis. In this false-colored transmission electron micrograph (TEM), we witness the devastating effects of this debilitating condition on the human body. The image reveals a section through an axon, which is responsible for transmitting nerve impulses throughout our system. However, what catches our attention is that this particular axon has lost its protective myelin sheath. Normally produced by Schwann cells, the myelin sheath plays a crucial role in facilitating the conduction of electrical impulses along nerves. Multiple sclerosis (MS) is characterized by patches or lesions where the myelin sheath has been destroyed. This loss severely impairs nerve function and disrupts communication within the body's neural network. Through this histological representation, we gain insight into the pathology of MS and witness firsthand how demyelination affects nerve cells. The blue axon stands vulnerable without its usual shield while being surrounded solely by brown Schwann cells. As we delve into medical science and explore conditions like multiple sclerosis, images like these serve as powerful reminders of both the complexity and fragility of our bodies' inner workings. They inspire researchers to continue their quest for understanding and finding effective treatments for such disorders that impact millions worldwide.
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