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Coloured SEM of a section through nerve fibres
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Coloured SEM of a section through nerve fibres
Nerve fibres. Coloured scanning electron micrograph (SEM) of a section through bundles of nerve fibres (red). Each is within a sheath, or perineurium (blue). The nerve fibre bundles (fasciculi) are held together by connective tissue (green). Each fibre consists of a nerve cell axon, the output process of a nerve cell, surrounded by a fatty insulating layer known as a myelin sheath. Myelin sheaths increase the transm- ission speed of the electrical nerve signals. Nerves in the body serve to collect, interpret and relay information. The fibres pass the information on to other parts of the body, such as the muscles and organs. Magnification unknown
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Media ID 6421760
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
Axon Connective Tissue Fasciculus Fibre Fibres Nerve Nerve Fibre Nerve Fibres Nervous Perineurium System
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This print showcases the intricate beauty of nerve fibres within the human body. In this coloured scanning electron micrograph (SEM), we are granted a glimpse into the complex network that allows our nervous system to function seamlessly. The image reveals bundles of nerve fibres, depicted in striking red hues, each encased within a protective sheath called perineurium, represented by shades of blue. These fibre bundles, known as fasciculi, are held together by vibrant green connective tissue. At closer inspection, we can observe that every individual fibre consists of a nerve cell axon enveloped by a fatty insulating layer called myelin sheath. This myelin sheath plays a crucial role in increasing the speed at which electrical signals are transmitted along the nerves. Nerves serve as messengers within our bodies, collecting and interpreting information before relaying it to various parts such as muscles and organs. They form an integral part of our sensory perception and motor functions. This mesmerizing photograph not only highlights the incredible complexity and organization found within our nervous system but also serves as a reminder of how interconnected and remarkable our own bodies truly are.
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