Top Pictures: magnified

Nail flakes.jpg

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Nail flakes. Coloured scanning electron micrograph (SEM) of flakes of keratin sticking up from a nail surface. Nails are translucent hard structures on the fingers and toes. The protein keratin is also found in skin and hair.

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H120381-Woven_fabric,_SEM-SPL.jpg

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Woven fabric fibres. Coloured scanning electron micrograph (SEM) of synthetic fibres woven to form clothes. Nylon and polyester are common synthetic clothing materials. This sample is from a material known as Georgette crepe.

clothingcolouredfabricfalsefibregeorgettecrepeimagesmagnifiedimagematerialssciencemicroscopicsubjectsmulticolourednylonpatternpolyesterportraitscanningelectronmicrographmicroscopesemsynthetictechnologicaltechnologyunderwearverticalweavewoven

C0048621-Testosterone_Crystal-SPL.jpg

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Testosterone crystal; transmitted light micrograph.

anabolicandrogenbiologychemistrycrystalpatternpatternscrystalshealthhormonehormonesmagnifiedmalemedicalresearchmedicinemicromicrographmicrographsmicrographymicroscopicreplacementtherapyreproductionsciencesexorganssexualsteroidtemtestistestosteronetransmittedlight

C0031782-Crystal__aspirin-SPL.jpg

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Crystal: aspirin.

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C0048606-Didanosine_Crystal-SPL.jpg

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Drugs: DDI crystal, (anti-AIDS); transmitted light micrograph.

acquiredimmunedeficiencysyndromeaidsresearchantiantiviralbiologychemistrycrystalpatternpatternscrystalscureddididanosinedrughealthmagnifiedmedicalmedicinemicromicrographmicrographsmicrographymicroscopicpathologypharmaceuticalphysiologysciencetemtransmittedlighttreatmentviralinfectionvirus

P154217-Skeletal_muscle-SPL.jpg

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Enhancement of 5E6120. Striated muscle. coloured transmission electron micrograph (TEM) of a longitudinal section through striated skeletal muscle. The striated banding- pattern of the muscle fibrils is seen. The fibrils run in parallel (from left to right) and between them runs sarcoplasmic reticulum (SR) that transmits nerve impulses to the fibrils. Here, the SR contains many mitochondria. Within each fibril are contractile units called sarcomeres separated by lines. A sarcomere has protein filaments of myosin and actin that slide over each other, thereby causing the whole muscle to contract. Skeletal muscle is responsible for voluntary muscle movement in the body.

actinfilamentanatomybiologybodycellhorizontalhumanbodiesimageslandscapemagnifiedimagemicrographmicrographsmicrographymicroscopicphotosmitochondriamusclefibrilfibrilsmusclesmyosinpatternphysiologyredsarcomeressarcoplasmicreticulumscienceskeletalsrstriatedsubjectstemtransmissionelectron

Eyebrow hair.jpg

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Eyebrow hair and skin.

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P154218-Skeletal_muscle-SPL.jpg

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Enhancement of 5E6120. Striated muscle. coloured transmission electron micrograph (TEM) of a longitudinal section through striated skeletal muscle. The striated banding- pattern of the muscle fibrils is seen. The fibrils run in parallel (from left to right) and between them runs sarcoplasmic reticulum (SR) that transmits nerve impulses to the fibrils. Here, the SR contains many mitochondria. Within each fibril are contractile units called sarcomeres separated by lines. A sarcomere has protein filaments of myosin and actin that slide over each other, thereby causing the whole muscle to contract. Skeletal muscle is responsible for voluntary muscle movement in the body.

actinfilamentanatomybiologybodycellhorizontalhumanbodiesimageslandscapemagnifiedimagemicrographmicrographsmicrographymicroscopicphotosmitochondriamusclefibrilfibrilsmusclesmyosinpatternphysiologyredsarcomeresarcomeressarcoplasmicreticulumscienceskeletalsrstriatedsubjectstemtransmissionelectron