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Nerve fibres, TEM
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Nerve fibres, TEM
Nerve fibres. Coloured transmission electron micrograph (TEM) of a section through non- myelinated nerve fibres (blue). The fibres are arranged into bundles surrounded by the cytoplasm of Schwann cells (green). The bundles are separated by collagen fibres (brown). The fibres lack the concentric myelin sheaths that surround other types of nerve, and which improve the conduction of nerve impulses. It is usually smaller nerves, such as those of the autonomic nervous system, that are not myelinated
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6421800
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
Bundle Bundles Collagen Cytoplasm Fibre Fibres Nerve Nerve Fibre Nerves Nervous Schwann Cell System Transmission Electron Micrograph Transmission Electron Microscope Cells False Coloured
EDITORS COMMENTS
This print showcases the intricate network of nerve fibres within the human body. Using a transmission electron microscope (TEM), this coloured micrograph reveals non-myelinated nerve fibres in striking blue hues. These fibres, devoid of the concentric myelin sheaths found in other types of nerves, play a crucial role in transmitting electrical impulses throughout our system. Arranged into bundles and enveloped by the vibrant green cytoplasm of Schwann cells, these delicate fibres are separated by collagen fibers depicted in rich brown tones. The absence of myelin sheaths may seem peculiar; however, it is typically observed in smaller nerves like those belonging to the autonomic nervous system. The image not only provides an anatomical insight into our biological makeup but also highlights the complexity and diversity present within our nervous system. Each fibre contributes to maintaining bodily functions and ensuring efficient communication between different parts of our body. Captured with precision and enhanced with false colours for clarity, this photograph from Science Photo Library offers a glimpse into one aspect of cellular biology that often goes unnoticed. It serves as a reminder that even at microscopic levels, there is beauty and intricacy worth exploring within ourselves.
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