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Nerve cells. Coloured scanning electron micrograph (SEM) of nerve cells, known as neurones.

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Fat tissue. Coloured scanning electron micrograph (SEM) of a sample of fat tissue, showing fat cells (adipocytes, blue) surrounded by fine strands of supportive connective tissue. Adipocytes are among the largest cells in the human body, each cell being 100 to 120 microns in diameter. Almost the entire volume of each fat cell consists of a single lipid (fat or oil) droplet. Adipose tissue forms an insulating layer under the skin, storing energy in the form of fat, which is obtained from…

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Blood clot. Coloured scanning electron micrograph (SEM) of a blood clot from the inner wall of the left ventricle of a human heart. Red blood cells (erythrocytes) are trapped within a fibrin protein mesh (cream). The fibrin mesh is formed in response to chemicals secreted by platelets (pink), fragments of white blood cells. Clots are formed in response to cardiovascular disease or injuries to blood vessels. Connective tissue (orange) is also seen.

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Small white butterfly egg. Coloured scanning electron micrograph (SEM) of an egg of the small white butterfly (Pieris rapae). (x160) / Jo Angell Design

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Colored scanning electron micrograph (SEM) of squamous cell carcinoma (cancer) cells from a human mouth. The many blebs (lumps) and microvilli (small projections) on the cells' surfaces are typical of cancer cells.

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Fertilization. Coloured scanning electron micrograph (SEM) of a sperm (blue) attempting to penetrate a human egg (orange).

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Coloured SEM of sensory hair cells from the inner ear. These cells are surrounded by a fluid called endolymph. As sound enters the ear it causes waves to form in the endolymph, which in turn cause the hairs to move. The movement is converted to an electrical signal that is passed on to the brain. Each crescent-shaped arrangement of hairs lies atop a single cell

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Ruptured venule. Colored (SEM) showing stacks (rouleaux) of red blood cells exposed inside a torn venule.

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Red blood cell on a needle, coloured scanning electron micrograph (SEM). Composite SEM of a single red blood cell on the tip of a needle.

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Fibonacci : Cochlea from Inner Ear. Color-enhanced scanning electron micrograph of the inside of a guinea pig inner ear showing the hearing organ, or cochlea. Running along the spiral structure are rows of sensory cells which respond to different frequencies of sound. The whole organ is just a few millimeters long.

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Colored scanning electron micrograph of the blood vessels coming from the optic disc. Way cool.

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Lung cancer cell division (imaged using a scanning electron microscope [SEM])

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Iris of the Eye, by Scanning electron microscopy (Steve Gschmeissner/Science Photo Library)

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Ruptured capillary. Coloured scanning electron micrograph (SEM) of a red blood cell squeezing out of a torn capillary. A capillary is the smallest type of blood vessel, often only just large enough for red blood cells to pass through. Red blood cells (erythrocytes) are biconcave, disc-shaped cells that transport oxygen from the lungs to body cells.

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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). Perineurium (connective tissue, pink) surrounds the nerve bundle while endoneurium divides the individual fibres.

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Using a Scanning Electron Microscope, retired scientific photographer Steve Gschmeissner, 61, from Bedford, is able to magnify insects by up to a million times. The results show incredibly detailed images of creepy crawlies in 3D A coloured scanning electron micrograph of the head of a human flea (Pulex irritans)

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Moss spore capsule: Colored Scanning electron micrograph (SEM) of moss (Funaria sp) spore capsule. : pics

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Retina. Coloured scanning electron micrograph (SEM) of rods (yellow) and cones (green) in the retina of the eye. The outer nuclear layer is purple. Magnification x1800 when printed at 10 centimetres wide. [F0010041] Incredible!!

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Wellcome Image Awards 2011: Life as you've never seen it before - in pictures

Scanning electron micrograph (SEM) of the scales on the wing of a Madagascan moon moth, Argema mittrei--also known as the Comet moth, after its very long tail. The tail span is 15 cm and wing span 20 cm, making it one of the world's largest silk moths.

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Muscle fibre, SEM (Scanning Electron Microscope). I changed my mind, I want to be a scientist and study EVERYTHING!

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Amazing Close-Ups of Seeds

Rob Kesseler and his electron microscopes.

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the internal architecture of bones : human bone under Scanning Electron Microscope

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STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY Blood clot. Coloured scanning electron micrograph (SEM) of red blood cells (erythrocytes, red) clumped together with fibrin (brown) to form a blood clot. Magnification: x5000.

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Brain tumour. Coloured scanning electron micrograph (SEM) of a glioma, a type of tumour that arises from glial cells of the central nervous system. The most common site for gliomas is the brain. They can be either low or high-grade, with the latter having the worse prognosis. Magnification: x8000 when printed at 10 centimetres wide. Credit: STEVE GSCHMEISSNER

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