Myelin surrounding a nerve axon, TEM

Wall Art and Photo Gifts from Science Photo Library

Myelin surrounding a nerve axon, TEM

Myelin surrounding a nerve axon, coloured transmission electron micrograph (TEM). The concentric round rings are the sheets of a Schwann cells myelin membrane (brown rings) tightly wound around the axon (centre). Schwann cells wrap themselves around nerve axons of the peripheral nervous system, creating a myelin sheath (myelination). Myelination helps to both electrically insulate the nerve from surrounding tissue and propagate (speed up) electrical impulses along the axon. Not much of the actual Schwann cell can be seen as the myelin profile takes up most of the image. Magnification: x25, 000 when printed 10 centimetres wide

Science Photo Library features Science and Medical images including photos and illustrations

Media ID 6449355

© SCIENCE PHOTO LIBRARY

Axon Cell Biology Cross Section Cytology Electric Electrical Fibres Glial Cell Histological Histology Insulation Membrane Microscope Myelin Myelin Sheath Myelinated Myelination Nerve Cell Nerve Fibre Nervous Neural Peripheral Nervous System Propagate Propagation Saltatory Conduction Schwann Cell System Transmission Electron Transmission Electron Micrograph False Coloured Neurology Section Sectioned

EDITORS COMMENTS
This stunning coloured transmission electron micrograph (TEM) captures the intricate beauty of myelin surrounding a nerve axon. The concentric round rings, resembling brown ribbons, are actually sheets of a Schwann cell's myelin membrane tightly wound around the central axon. These Schwann cells play a crucial role in creating a protective myelin sheath around nerve fibers in the peripheral nervous system. Myelination serves two important functions: electrical insulation and propagation of electrical impulses along the axon. By insulating the nerve from surrounding tissue, myelin ensures that signals travel efficiently without interference or loss of energy. Additionally, this process helps to speed up electrical impulses as they jump between nodes of Ranvier along the axon—a phenomenon known as saltatory conduction. In this image, not much of the actual Schwann cell is visible due to the dominance of myelin profiles filling most of the frame. Magnified at x25,000 when printed 10 centimeters wide, it offers an extraordinary glimpse into our biological wiring. As we marvel at this microscopic view, let us appreciate how these delicate structures contribute to our healthy neural functioning. This mesmerizing image reminds us that within each one of us lies an intricate network where biology meets electricity—an awe-inspiring testament to nature's ingenuity and complexity.

MADE IN THE USA
Safe Shipping with 30 Day Money Back Guarantee

FREE PERSONALISATION*
We are proud to offer a range of customisation features including Personalised Captions, Color Filters and Picture Zoom Tools

SECURE PAYMENTS
We happily accept a wide range of payment options so you can pay for the things you need in the way that is most convenient for you

* Options may vary by product and licensing agreement. Zoomed Pictures can be adjusted in the Cart.