myomere

myomere
a lateral, W-shaped muscle segment of the body, separated from its neighbours by fibrous connective tissue. The upper central point of the "W" is directed anteriorly. Superficial fibres are separated from deeper ones, the former being red muscle or musculus lateralis superficialis with smaller fibres and more blood vessels, and the latter white muscle or musculus lateralis profundus. The two layers are separated by a septum of fibrous connective tissue. Red muscle is thickest at the lateral line, thinning dorsally and ventrally. Myomeres attach to the myocommata and thus indirectly to the vertebrae. Some are supported by neural and haemal spines. These myomeres are the muscles used in movement

Dictionary of ichthyology. 2009.

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  • myomère — [mjɔmɛʀ] n. m. ou myotome [mjɔtom] n. m. ÉTYM. Déb. XXe, myomère, Nouveau Larousse illustré; myotome, 1904, in Rev. gén. des sc., no 16, p. 795 (antérieur au sens d « instrument tranchant », 1855, Nysten Littré); de myo , et mère, tome. ❖ ♦ Biol …   Encyclopédie Universelle

  • Myomēre — Myomēre, Muskelsegmente, s. Myomerie …   Meyers Großes Konversations-Lexikon

  • Myomere — Perch filets showing myomere structure Myomere are the blocks of skeletal muscle tissue found commonly in chordates. They are commonly zig zag, W or V shaped muscle fibers. The myomeres are separated from adjacent myomere by connective tissues… …   Wikipedia

  • Myomère — Filets de perche du Nil laissant apparaître les structures de myomères (lignes). Les Myomères sont des ensembles de tissus musculaires généralement présents chez les Chordés. En général, ils ont des formes en «V » ou en «W ». Ils… …   Wikipédia en Français

  • myomere — n. [Gr. mys, muscle; meros, part] A muscular segment …   Dictionary of invertebrate zoology

  • myomere — noun A block of zig zag W or V shaped muscle fibers found commonly in fish and chordate fossils …   Wiktionary

  • myomere — SYN: myotome (4). [myo + G. meros, a part] * * * myo·mere (miґo mēr) [myo + mere] myotome (def. 2) …   Medical dictionary

  • Myomere — My|o|me|re, die; , n [zu griech. méros = Teil] (Med.): Muskelabschnitt …   Universal-Lexikon

  • Myomere — Myo|me̱re [zu ↑myo... u. gr. μερος = Teil] w; , n: = Myotom …   Das Wörterbuch medizinischer Fachausdrücke

  • Myomere — Myo|me|re die; , n <zu ↑myo... u. gr. méros »Teil«> Muskelabschnitt (Med.) …   Das große Fremdwörterbuch

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