Demyelinated nerve, TEM
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Demyelinated nerve, TEM
Demyelinated nerve. Coloured transmission electron micrograph (TEM) of a section through an axon (a structure that transmits nerve impulses to other nerve cells) that has lost its myelin sheath. The axon (red) has only its Schwann cell (blue) surrounding it. The Schwann cell would normally produce the myelin sheath. A nerves myelin sheath increases the speed at which it conducts 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 6414974
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
Axon Demyelination Loss Lost Multiple Sclerosis Myelin Nerve Cell Neuron Neurone Pathology Schwann Cell Sheath Transmission Electron Microscope Condition Disorder Neurological Neurology Section Sectioned
EDITORS COMMENTS
This print from Science Photo Library showcases a demyelinated nerve, providing a visually stunning glimpse into the intricate world of neurology. The coloured transmission electron micrograph (TEM) reveals a section through an axon, which has unfortunately lost its protective myelin sheath. In this image, the axon is depicted in striking red while its surrounding Schwann cell appears in vibrant blue. The absence of the myelin sheath is significant as it hampers nerve function and impairs electrical impulse conduction within the affected nerves. This impairment can be observed in various nerve disorders such as multiple sclerosis (MS), where patches or lesions destroy the myelin sheath. The loss of myelin is not merely an aesthetic concern; rather, it has profound implications for individuals experiencing these conditions. Myelin serves to increase the speed at which electrical impulses are conducted along nerves, facilitating efficient communication between different nerve cells throughout our body. Through this powerful image, we gain insight into both the beauty and fragility of our neurological system. It reminds us of the complex interplay between structure and function within our bodies and highlights how even subtle changes at a microscopic level can have far-reaching consequences on our overall health and well-being. Science Photo Library continues to provide invaluable resources like this photograph that bridge artistry with scientific discovery, deepening our understanding of diseases while inspiring awe for the intricacies found within every corner of nature's design.
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