Tapeworm surface, SEM

Tapeworm surface, SEM

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Credit: JANNICKE WIIK-NIELSEN / SCIENCE PHOTO LIBRARY

Caption: Coloured scanning electronmicrograph (SEM) of the surface of a tapeworm (Eubothrium crassum). E. crassum is a widely distributed intestinal parasite of Atlantic salmon (Salmo salar L.), brown trout and sea trout (Salmo trutta). The basic structure of an adult tapeworm consists of a head (scolex), a neck and a chain of segments (proglottids) which possess a protective tegument. As tapeworms do not have a gut, all nutrient acquisition occurs through the tegument. Microvilli or microtriches enlarge the surface area of the tegument and aid nutrient uptake. Magnification: x3330 when printed at 10cm wide.

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Keywords: animal, biological, biology, cestoda, coloured, eubothrium, eubothrium crassum, false-coloured, fauna, flatworm, intestinal, intestine, invertebrate, invertebrates, microtriches, microvilli, nature, parasite, parasitic, parasitology, platyhelminthes, proglottid, proglottids, salmon, salmonids, scanning electron micrograph, scanning electron microscope, segment, sem, strobili, structure, tape-worm, tegument, wildlife, worm, zoological, zoology

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