Sheath Collection (#5)

Hair follicle, SEM C014 / 0382
Hair follicle. Coloured scanning electron micrograph (SEM) of a section through a hair shaft and follicle (round structures at centre)

Arisaema ringens C017 / 7448
Arisaema ringens showing a leaf protruding through a sheath

Hair follicle, SEM C014 / 0383
Hair follicle. Coloured scanning electron micrograph (SEM) of a section through a hair shaft and follicle (round structures at centre)

Dumped plastic F006 / 9146
Dumped electrical cable sheathing

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

Sperm tails, TEM C014 / 1463
Sperm tails. Transmission electron micrograph (TEM) of sections through the tails of sperm (spermatozoa) cells at various levels

Sperm tails, TEM C014 / 1465
Sperm tails. Transmission electron micrograph (TEM) of sections through the tails of sperm (spermatozoa) cells at various levels

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

Sperm tails, TEM C014 / 1464
Sperm tails. Transmission electron micrograph (TEM) of sections through the tails of sperm (spermatozoa) cells at various levels

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

Leg muscles, artwork C013 / 4429
Leg muscles. Computer artwork of the bones and outer muscles of the left leg, seen from the front (anterior view) at an oblique angle looking downwards

Curved sabers formerly belonging to army officials. SPAIN. Vitoria. Museum of the Armeric (armoury)

ESPOZ Y MINA, Francisco Espoz e Ilundain, also called (1781-1836). Spanish guerrilla leader and general of liberal ideology. Sword and case of Espoz y Mina. SPAIN. Madrid. Army Museum

BOWIE KNIFE AND SHEATH. Wood engraving, American, late 19th century

Small Skipper (Thymelicus sylvestris) adult female, laying eggs in grass leaf sheath, Powys, Wales, june

Sperm tails, TEM
Sperm tails. Coloured transmission electron micrograph (TEM) of cross sections through sperm tails. A sperms tails ability to move is partly due to the arrangement of microtubules

Electricity cables. Polyvinyl chloride (PVC) insulated wires. Thicker wires (top) can carry larger currents and require thicker insulation

Spinal nerve ganglion, light micrograph
Spinal nerve ganglion. Light micrograph of a cross-section through a spinal nerve ganglion. This is a node of nerve cells located just outside the spinal cord at the point where it is joined by

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

Skeletal muscle, SEM
Skeletal muscle. Scanning electron micrograph (SEM) of a transverse section through skeletal muscle. The many muscle fibres (red) are seen, along with the elastic sheath (epimysium)

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

Optical fibre bundle for communications
3D computer artwork of a cable containing optical fibres, split to show its different layers. The optical fibres are in the centre, some of them grouped within coloured outer wrappings

Skeletal muscle fibres, SEM
Skeletal muscle fibres, coloured scanning electron micrograph (SEM). Endomysial connective tissue is green. Magnification: x300 when printed at 10 centimetres wide

Skeletal muscle fibre, SEM
Skeletal muscle fibre. Coloured scanning electron micrograph (SEM) of a section through a muscle fibre

Trigger finger, artwork
Artwork of the anatomy of trigger finger, a condition arising when the sheath surrounding a tendon (blue) in the hand becomes swollen, preventing the tendon from moving smoothly

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)

Flame-resistant cable, with the layers successively cut away to show its structure. Sheathed in fireproof materials, this cable can resist the high temperatures generated during a fire

Eukaryotic flagellum structure, artwork
Eukaryotic flagellum structure. Cutaway artwork showing the internal structure of the flagellum in eukaryotic cells. Flagella are tail-like projections used for cell locomotion

Electrical cables. Each cable is composed of a live, neutral and earth wire, insulated within rubber sheaths. The wires are made from copper, which is an excellent conductor

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

Grass stem, SEM
Grass stem. Coloured scanning electron micrograph (SEM) of a section through a grass stem (family Graminaceae). At upper centre is the vascular bundle

Rubber plant (Ficus elastica) leaf sheath

Swordplay display
Swordplay organised by the famous Abouel-Seyfine and Tcherkes Ryza-Bey

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"The Kings' Two Daggers: One with a Blade of Gold, the Other of Iron" In the realm of kings and warriors, two daggers stood as symbols of power. One gleamed with a blade forged from pure gold, radiating opulence and authority. The other possessed an iron edge, representing strength and resilience in battle. These contrasting weapons were not only tools for conquest but also reflections of their wielders' character. Delving deeper into the mysteries of human anatomy, scientists uncovered the intricate process known as myelination. Through Transmission Electron Microscopy (TEM), they captured Picture No. 10876591 - a mesmerizing glimpse into nerve fibers adorned with myelin sheaths that enhance electrical conductivity within our bodies. This microscopic world revealed nature's ingenious design to optimize communication between neurons. Beyond scientific marvels, artists found inspiration in crafting designs for dagger sheaths that transcended mere functionality. A daring creation emerged—a sheath depicting Death itself—an embodiment of mortality juxtaposed against the lethal beauty concealed within. Meanwhile, Regatta and Carnival Week brought joyous festivities to Fowey, Cornwall in August 1993. Amidst vibrant celebrations filled with laughter and merriment, one could almost forget the existence of daggers or their somber purpose. Traveling across borders to Germany's Aachen Cathedral Treasury unveiled Oliphant—a magnificent relic from times long past—its ornate carvings telling tales lost to history while guarding secrets untold. Fashion too had its rendezvous with daggers; Marcus dress advertised Courtelle fabric through an elegant portrayal where sophistication met utility—the perfect fusion for modern women seeking both style and convenience. But let us journey back further still—to medieval England under King Henry III's reign—where three soldiers donned armor bearing witness to countless battles fought on blood-soaked fields; their trusty blades safely nestled within sturdy sheaths at their sides.