spiral fold
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fold — 1. A ridge or margin apparently formed by the doubling back of a lamina. SYN: plica. 2. In the embryo, a transient elevation or reduplication of tissue in the form of a lamina … Medical dictionary
spiral valve — a spiral or helical fold in the midgut of Petromyzontiformes, Elasmobranchii, Holocephali and some primitive Teleostomi. Functions to increase the surface area for processing food without lengthening the intestine … Dictionary of ichthyology
columellar fold — (MOLLUSCA: Gastropoda) A spiral wound ridge on the columella that projects into the interior of the shell … Dictionary of invertebrate zoology
parietal fold — (MOLLUSCA: Gastropoda) A spiral ridge on the parietal region projecting into the interior of the shell … Dictionary of invertebrate zoology
valve — 1. A fold of the lining membrane of a canal or other hollow organ serving to retard or prevent a reflux of fluid. 2. Any formation or reduplication of tissue, or flaplike structure … Medical dictionary
plica — [TA] SYN: fold (1). [Mod. L. a plait or fold] plicae adiposae pleurae SYN: fatty folds of pleura, under fold. plicae alares plicae synovialis infrapatellaris SYN: alar folds of intrapatellar synovial fold, under fold. plicae ampullares tubae… … Medical dictionary
Пищеварительная система — обеспечивает усвоение организмом необходимых ему в качестве источника энергии, а также для обновления клеток и роста питательных веществ. Пищеварительный аппарат человека представлен пищеварительной трубкой, крупными железами пищеварительного… … Атлас анатомии человека
Trochus camelophorus — Taxobox name = Trochus camelophorus status = regnum = Animalia phylum = Mollusca classis = Gastropoda subclassis = Prosobranchia ordo = Archaeogastropoda superfamilia = Trochacea familia = Trochidae genus = Trochus species = T. camelophorus… … Wikipedia
valvula — SYN: valvule. [Mod. L. dim. of valva] Amussat v. SYN: posterior urethral valves, under valve. valvulae anales [TA] SYN: anal valves, under valve. v. bicuspidalis SYN: mitral valve. valvulae conniventes SYN: circular folds of small intestine,… … Medical dictionary
crista — SYN: crest. [L. crest] c. ampullaris [TA] SYN: ampullary crest. c. ampullaris (ductuum semicircularium) [TA] SYN: ampullary crest (of semicircular ducts). c. arcuata cartilaginis arytenoideae [TA] SYN: arcuate crest of arytenoid cartilage. c.… … Medical dictionary
