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Myelin Sheath Collection

The myelin sheath is a crucial component of the nervous system, playing a vital role in the transmission of nerve impulses

Background imageMyelin Sheath Collection: Regenerating nerve cell, TEM

Regenerating nerve cell, TEM
Regenerating nerve cell. Coloured transmission electron micrograph (TEM) of a section through a nerve axon (blue) regenerating within a Schwann cell (light brown)

Background imageMyelin Sheath Collection: Illustration of human nerve cell cross section showing dendrite, soma, axon, nucleus

Illustration of human nerve cell cross section showing dendrite, soma, axon, nucleus, nodes and myelin sheath

Background imageMyelin Sheath Collection: Microscopic view of nerve fibers

Microscopic view of nerve fibers. A nerve fiber is a threadlike extension of a nerve cell in the nervous system

Background imageMyelin Sheath Collection: Nerve with myelin sheath, seen in lower right, connects with muscle

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

Background imageMyelin Sheath Collection: Microscopic view of inner nervous system

Microscopic view of inner nervous system

Background imageMyelin Sheath Collection: Myelin deterioration, artwork F008 / 0783

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

Background imageMyelin Sheath Collection: Nerve bundle, light micrograph

Nerve bundle, light micrograph
Nerve bundle. Light micrograph of a section through a nerve bundle from the sciatic nerve. Myelin sheaths (dark blue circles) can be seen surrounding the axons (light blue dots)

Background imageMyelin Sheath Collection: Nerve cells, artwork C015 / 4265

Nerve cells, artwork C015 / 4265
Nerve cells. Computer artwork of two nerve cells or neurons. Neurons are responsible for passing information around the central nervous system (CNS) and from the CNS to the rest of the body

Background imageMyelin Sheath Collection: Multiple sclerosis, light micrograph

Multiple sclerosis, light micrograph
Multiple sclerosis. Light micrograph of a section through the brain showing a large area of demyelinated nerve fibres (light pink, top) due to multiple sclerosis

Background imageMyelin Sheath Collection: Nerve fibre node, TEM C014 / 1458

Nerve fibre node, TEM C014 / 1458
Nerve fibre node. Transmission electron micrograph (TEM) of a longitudinal section through a nerve fibre at a node of Ranvier, showing the nerve tissue (red) and the myelin sheath (dark blue)

Background imageMyelin Sheath Collection: Brain cell, TEM C014 / 0358

Brain cell, TEM C014 / 0358
Brain cell. Transmission electron micrograph (TEM) of a section through an oligodendrocyte in human brain tissue. Oligodendrocytes occur in both the white

Background imageMyelin Sheath Collection: Brain cell, TEM C014 / 0359

Brain cell, TEM C014 / 0359
Brain cell. Transmission electron micrograph (TEM) of a section through an oligodendrocyte in human brain tissue. Oligodendrocytes occur in both the white

Background imageMyelin Sheath Collection: Nerve cells, artwork C018 / 2887

Nerve cells, artwork C018 / 2887
Nerve cells, or neurons, computer artwork. Neurons are responsible for passing information around the central nervous system (CNS) and from the CNS to the rest of the body

Background imageMyelin Sheath Collection: Brain cells, TEM C013 / 4801

Brain cells, TEM C013 / 4801
Brain cells. Transmission electron micrograph (TEM) of a section through oligodendrocytes (dark) in human brain tissue, showing free ribosomes (dark green dots), golgi apparatus (curved brown lines)

Background imageMyelin Sheath Collection: Brain cells, TEM C013 / 4800

Brain cells, TEM C013 / 4800
Brain cells. Transmission electron micrograph (TEM) of a section through oligodendrocytes in human brain tissue, showing free ribosomes (dark pink dots), golgi apparatus (curved brown lines)

Background imageMyelin Sheath Collection: Brain cell, TEM C013 / 4799

Brain cell, TEM C013 / 4799
Brain cell. Transmission electron micrograph (TEM) of a section through an oligodendrocyte in human brain tissue, showing free ribosomes (dark brown dots), golgi apparatus (curved orange lines)

Background imageMyelin Sheath Collection: Brain cell, TEM C013 / 4798

Brain cell, TEM C013 / 4798
Brain cell. Transmission electron micrograph (TEM) of a section through an oligodendrocyte in human brain tissue, showing free ribosomes (dark blue dots), golgi apparatus (curved light blue lines)

Background imageMyelin Sheath Collection: Myelin surrounding a nerve axon, TEM

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)

Background imageMyelin Sheath Collection: Oligodendrocyte and microglia brain cells

Oligodendrocyte and microglia brain cells
Oligodendrocyte and microglia action in the brain. At top, the axon (output process, orange) of a neuron (nerve cell) is seen

Background imageMyelin Sheath Collection: Synapse, computer artwork

Synapse, computer artwork
Synapses. Computer artwork of synapses, the junctions between the ends (blue, swollen) of two nerve cells (neurons). Nerve cells are responsible for passing information around the central nervous

Background imageMyelin Sheath Collection: Multiple sclerosis, SEM

Multiple sclerosis, SEM
Multiple sclerosis. Coloured scanning electron micrograph (SEM) of microglial cells (round) ingesting oligodendrocytes (branched). This is the process thought to occur in multiple sclerosis (MS)

Background imageMyelin Sheath Collection: Multiple sclerosis

Multiple sclerosis. Illustration of the brain and spinal cord of a woman suffering from multiple sclerosis (MS). Also seen in the image is a magnified view of the spinal cord (upper right)

Background imageMyelin Sheath Collection: Nerve fibres, light micrograph

Nerve fibres, light micrograph
Nerve fibres. Light micrograph of a transverse section through myelinated nerve fibres. The myelin sheaths are black, axons are blue. Magnification: x100 when printed at 10 centimetres wide

Background imageMyelin Sheath Collection: Nerve fibres, SEM

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

Background imageMyelin Sheath Collection: Nerve cell anatomy, artwork

Nerve cell anatomy, artwork
Nerve cell anatomy. Computer artwork showing the organelles in a neurone (nerve cell). At centre is nucleus (grey) and nucleolus (black)

Background imageMyelin Sheath Collection: Nerve cell and axon, diagram

Nerve cell and axon, diagram
Nerve cell and axon. Diagram showing how the input to a nerve cell (neuron) through dendrites (shown by arrows at upper left) is transmitted (yellow arrow) along the nerve cells axon (across bottom)

Background imageMyelin Sheath Collection: Neuromuscular junctions, artwork

Neuromuscular junctions, artwork
Neuromuscular junctions. Computer artwork of junctions between nerves (thread-like objects) and a muscle (purple surface)

Background imageMyelin Sheath Collection: Synapses, artwork

Synapses, artwork
Synapses. Computer artwork of synapses, the junctions between the ends (green, swollen) of two nerve cells (neurons). Signals are passed along nerve cells in the form of an electrical impulse

Background imageMyelin Sheath Collection: Brain cells in culture, light micrograph

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


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The myelin sheath is a crucial component of the nervous system, playing a vital role in the transmission of nerve impulses. This protective covering surrounds and insulates nerve fibers, allowing for efficient signal conduction. In regenerating nerve cells, the myelin sheath plays a significant part in restoring function and promoting recovery. Through techniques such as Transmission Electron Microscopy (TEM), scientists can observe the intricate structure of these regenerating cells at a microscopic level. However, multiple sclerosis poses a challenge to this delicate process. In individuals with this condition, the immune system mistakenly attacks and damages the myelin sheath. Scanning Electron Microscopy (SEM) images reveal the extent of this damage, highlighting areas where demyelination has occurred. An illustration depicting a cross-section of a human nerve cell showcases various components like dendrites, soma, axons, nucleus, nodes of Ranvier - all interconnected by the myelin sheath. This visual representation helps us understand how these elements work together to facilitate proper neural communication. Microscopic views provide further insight into both healthy and compromised nervous systems. One image captures an intricate network of nerve fibers with intact myelin sheaths connecting with muscles below it – demonstrating their essential role in transmitting signals efficiently. On contrastingly somber notes are depictions showcasing myelin deterioration through artwork or light micrographs. These visuals serve as reminders that conditions like multiple sclerosis can lead to significant disruptions in normal neurological functioning if left untreated or unmanaged. A closer look at specific structures within nerves reveals fascinating details about their composition and function. A TEM image highlights individual nodes along a nerve fiber – critical points where electrical impulses jump from one node to another for rapid signal propagation. Brain cells also benefit from studying them under TEM; these high-resolution images offer insights into their complex architecture and organization within our most vital organ – providing valuable information on how they interact with each other via myelinated pathways.