Giant roundworm, light micrograph

Giant roundworm, light micrograph

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Caption: Giant roundworm. Light micrograph of a transverse section through a male giant roundworm (Ascaris lumbricoides). The body is covered in a thick cuticle (pink), which is secreted by the underlying hypodermis (red). Below this are layers of b=muscle (light pink). The gut is at bottom centre, with a seminal vesicle (triangular) containing sperm above it. These are surrounded by several circular testes undergoing spermatogenesis (sperm production). Magnification: x7 when printed at 10 centimetres wide.

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Keywords: animal, ascarid, ascaris lumbricoides, biological, biology, cut out, cuticle, endoparasite, fauna, giant roundworm, gut, hypdermis, intestine, invertebrate, light micrograph, light microscope, male, nature, nematode, no-one, nobody, parasite, parasitic, pathogen, roundworm, sectioned, seminal vesicle, sperm, testes, testis, transverse section, white background, wildlife, worm, zoological, zoology

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