Myelin Collection

Myelination of nerve fibres, TEM
Myelination of nerve fibres. Coloured transmission electron micrograph (TEM) of Schwann cells (blue, with brown nuclei) insulating nerve fibres (axons, pink) with a myelin sheath

Myelination of nerve fibres, TEM
Myelination of nerve fibres. Coloured transmission electron micrograph (TEM) of Schwann cells (red, with blue nuclei) insulating nerve fibres (axons, orange) with a myelin sheath

Myelinated nerve, TEM
Myelinated nerve. Coloured transmission electron micrograph (TEM) of myelinated nerve fibres and Schwann cells. Myelin (purple) is an insulating fatty layer that surrounds nerve fibres (axons)

Multiple sclerosis, MRI scan

Cross-section diagram of a human nerve fascicle, including a bundle of nerve fibres, blood vessels and myelin sheath

Illustration of peripheral nerves showing ganglion, nerve Fibers, myelin sheath, Arteries, veins and fat cells

Cross section biomedical illustration of nerves development with myelin winding around axons to form protective and insulating sheath

Cross section biomedical illustration of nerve development with axon wrapped in sections of myelin separated by Node of Ranvier

Nerve with myelin sheath, seen in lower right, connects with muscle. Blood vessel and immune cells are seen in the center and upper right of image

Myelin deterioration, artwork F008 / 0783
Myelin deterioration, computer artwork

Myelin sheats and glial cells, artwork C014 / 2646
Computer artwork depicting axons surrounded by a myelin sheath (brown) and microglial cells (light blue). Glial cells are nervous system cells that provide structural support

Peripheral nerve, light micrograph
Peripheral nerve. Light micrograph of a section through a peripheral nerve. This is a mixed nerve with myelinated axons (dark blue circles)

Nerve ganglion, light micrograph
Nerve ganglion. Light micrograph of a section through a dorsal (sensory) spinal root ganglion associated with a sensory nerve root of the spinal cord. Sensory information from peripheral sites e.g

Myelinated nerve, light micrograph
Myelinated nerve. Light micrograph of a section through a peripheral myelinated nerve, showing many individual axons each covered with deep blue-staining myelin sheaths

Myelinated nerve tissue, TEM
Myelinated nerve tissue. Transmission electron micrograph (TEM) of a section through myelinated nerve fibres (axons). Each axon is coated with many layers of myelin

Nerve ganglion, light micrograph C016 / 0532
Nerve ganglion. Light micrograph of a section through a nerve ganglion of the peripheral nervous system, showing clusters of nerve cell bodies

Myelinated nerve fibres, light micrograph C016 / 0531
Myelinated nerve fibres. Light micrograph of a section through a spinal sensory nerve containing many closely packed axons exhibiting a wave-type appearance

Nerve cell, illustration C018 / 0740
Nerve cell, or neuron, illustration. Neurons are responsible for passing information around the central nervous system (CNS) and from the CNS to the rest of the body

Myelin sheats and glial cells, artwork C014 / 2647
Computer artwork depicting axons surrounded by a myelin sheath (brown) and microglial cells (light blue). Glial cells are nervous system cells that provide structural support

Myelinated nerve, TEM C016 / 5840
Myelinated nerve. Coloured transmission electron micrograph (TEM) of a section through a myelinated nerve fibre and Schwann cell

Myelinated nerve, TEM C016 / 5839
Myelinated nerve. Coloured transmission electron micrograph (TEM) of a section through a myelinated nerve fibre and Schwann cell

Myelinated nerve, TEM C016 / 5838
Myelinated nerve. Coloured transmission electron micrograph (TEM) of a section through a myelinated nerve fibre and Schwann cell

Myelinated nerve, TEM C016 / 5448
Myelinated nerve. Transmission electron micrograph (TEM) of a section through a myelinated nerve fibre and Schwann cell. Myelin (black)

Myelinated nerve, TEM C016 / 5370
Myelinated nerve. Transmission electron micrograph (TEM) of a section through a myelinated nerve fibre and Schwann cell (centre)

Myelinated nerves, SEM C013 / 7142
Myelinated nerves. Coloured scanning electron micrograph (SEM) of a section through the sciatic nerve, showing the myelinated nerve fibres (axons)

Myelinated nerves, SEM C013 / 7141
Myelinated nerves. Coloured scanning electron micrograph (SEM) of a section through the sciatic nerve, showing the myelinated nerve fibres (axons)

Myelinated nerves, SEM C013 / 7138
Myelinated nerves. Coloured scanning electron micrograph (SEM) of a section through a myelinated nerve fibre (axon, beige, centre) from the sciatic nerve

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)

Nerve support cell, SEM
Nerve support cell. Coloured scanning electron micrograph (SEM) of an oligodendrocyte cell. This cell forms the myelin sheaths around nerve fibres in the central nervous system (brain and spinal cord)

Myelinated nerve fibres, SEM
Myelinated nerve fibres. Coloured scanning electron micrograph (SEM) of a section through a bundle of nerve fibres containing a blood vessel (orange)

Nerve fibre node, TEM
Nerve fibre node. Coloured transmission electron micrograph (TEM) of a cross-section through a nerve fibre (axon) at a node of Ranvier

Nerve fibres. Coloured scanning electron micrograph (SEM) of parallel myelinated nerve fibres in the spinal cord. Each fibre consists of a nerve cell axon, the output process of a nerve cell

Nerve fibre, SEM
Nerve fibres. Coloured scanning electron micrograph (SEM) of nerve fibres (brown). A group of nerves such as this is known as a fasciculus

Coloured SEM of some nerve fibres
Nerve fibres. Coloured scanning electron micrograph (SEM) of some nerve fibres. A group of nerves such as this is known as a fasciculus

False-colour SEM of a bundle of motor nerve fibres
Nerve fibres. False-colour scanning electron micrograph of a bundle of motor nerve fibres (blue). The bundle as a whole is surrounded by a cylindrical sheath of connective tissue

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

Nerve demyelination, TEM
Nerve demyelination. Coloured transmission electron micrograph (TEM) of a section through a Schwann cell and a nerve fibre, showing the early collapse of its myelin sheath

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

Nerve fibres, SEM
Myelinated nerve fibres, coloured scanning electron micrograph (SEM). The myelin sheath is grey, the axoplasm pink and the endoneurium (connective tissue) yellow

Nerve bundle, SEM
Nerve bundle. Coloured scanning electron micrograph (SEM) of a freeze-fractured section through a bundle of myelinated nerve fibres. Myelin sheaths (yellow) can be seen surrounding the axons (blue)

Saltatory conduction of nerve impulse, computer artwork. Nerve impulses move along myelinated nerves by saltatory conduction. The myelin (orange, striped) does not cover the entire axon

Nerve anatomy. Artwork showing the anatomy and structure of a nerve cell (neuron, upper left) and the nerve process (axon) connecting it to other nerve cells

Neural network. Artwork of nerve cells (neurons, green) connected by nerve processes (dendrites and axons) to form a neural network

Nerve damage, artwork
Nerve damage, computer artwork. The protective covering of the nerve has been lost and the structure of the actual nerve itself (centre) has degraded

Severed nerve, artwork
Severed nerve, computer artwork. The protective covering of the nerve has been lost and the structure of the actual nerve itself (centre) has degraded

Brain cells in culture, light micrograph
Brain cells in culture. Fluorescent light micrograph of a microglial cell (upper left) and an oligodendrocyte (centre) from a human brain

Myelinated nerves, SEM
Myelinated nerves. Coloured scanning electron micrograph (SEM) of a section through myelinated nerve fibres and Schwann cells

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Myelin, a vital component of our nervous system, plays a crucial role in the transmission of nerve impulses. This fatty substance forms a protective and insulating sheath around nerve fibers, ensuring efficient communication between different parts of our body. Through the lens of a transmission electron microscope (TEM), we can observe the intricate myelination process. The TEM images reveal how myelin winds around axons, creating this essential sheath that shields and enhances signal conduction. In a cross-section diagram of a human nerve fascicle, we witness the complexity within peripheral nerves. Alongside bundles of nerve fibers, blood vessels intertwine with myelin sheaths to provide nourishment and support. Biomedical illustrations further illustrate the development and structure of nerves. In one image, myelin is depicted as sections wrapping around axons separated by Nodes of Ranvier—a critical feature for rapid impulse propagation. Another illustration showcases how myelin deteriorates over time, emphasizing its importance in maintaining proper neurological function. Light micrographs offer glimpses into real-life examples. A peripheral nerve captured under these microscopic lenses showcases individual fiber's myelinated nature—an exquisite network responsible for transmitting signals throughout our bodies. Similarly, an image depicting a nerve ganglion highlights the presence of both myelinated fibers and glial cells—essential components for optimal neural functioning. Lastly, it is fascinating to see how myelinated nerves connect with muscles through another light micrograph—the lower right corner revealing their integration into motor pathways that allow us to move effortlessly. Understanding the significance sheds light on various aspects related to our nervous system's health and functionality—a testament to its indispensable role in facilitating smooth communication within our bodies.