mesoderm


mesoderm
/mez"euh derrm', mes"-, mee"zeuh-, -seuh-/, n. Embryol.
the middle germ layer of a metazoan embryo.
[1870-75; MESO- + -DERM]

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      the middle of the three germ layers, or masses of cells (lying between the ectoderm and endoderm), which appears early in the development of an animal embryo. In vertebrates it subsequently gives rise to muscle, connective tissue, cartilage, bone, notochord, blood, bone marrow, lymphoid tissue, and to the epithelia (surface, or lining, tissues) of blood vessels, lymphatic vessels, body cavities, kidneys, ureters, gonads (sex organs), genital ducts, adrenal cortex, and certain other tissues. See also ectoderm; endoderm.

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Universalium. 2010.

Look at other dictionaries:

  • Mesoderm — Tissues derived from mesoderm …   Wikipedia

  • Mesoderm — Mesoderm, in der Embryonalentwicklung höherer Tiere (⇒ Bilateria) bei der ⇒ Keimblätterbildung entstehendes drittes Keimblatt, das sich zwischen Ektoderm und Entoderm schiebt. Man unterscheidet verschiedene Entstehungswege: a) Abfaltung… …   Deutsch wörterbuch der biologie

  • mesoderm — (n.) 1858, from Fr. mésoderme or Ger. Mesoderm, lit. middle skin, coined by German physician Robert Remak (1815 1865) from MESO (Cf. meso ) + Gk. derma (see DERM (Cf. derm)) …   Etymology dictionary

  • Mesoderm — Mes o*derm, n. [Meso + Gr. de rma skin.] (Biol.) (a) The layer of the blastoderm, between the ectoderm and endoderm; mesoblast. See Illust. of {Blastoderm} and {Ectoderm}. (b) The middle body layer in some invertebrates. (c) The middle layer of… …   The Collaborative International Dictionary of English

  • Mesodérm — Mesodérm, s. Keimblätter und Entwickelungsgeschichte, S. 845 …   Meyers Großes Konversations-Lexikon

  • Mesodérm — (grch.), s. Gastrula …   Kleines Konversations-Lexikon

  • mesoderm — [mes′ə dʉrm΄, mez′ə dʉrm΄] n. [ MESO + DERM] the middle layer of cells of an embryo, from which the skeletal, reproductive, muscular, vascular, connective, etc. tissues develop mesodermal adj. mesodermic …   English World dictionary

  • Mesoderm — Das Mesoderm ist das mittlere Keimblatt des Embryoblasten. Die Mesoderm Zellen entstehen beim Menschen in der dritten Entwicklungswoche durch Einwanderung zwischen Epiblast und Hypoblast (Schizocoelie). Der Begriff Mesoderm ist nicht… …   Deutsch Wikipedia

  • mesoderm — The middle of the three primary germ layers of the embryo (the others being ectoderm and endoderm); m. is the origin of connective tissues, myoblasts, blood, the cardiovascular and lymphatic systems, most of the urogenital system, and the …   Medical dictionary

  • Mesoderm — Me|so|dẹrm 〈n. 11; Biol.〉 das mittlere Keimblatt des sich entwickelnden Embryos [<grch. mesos „mittel “ + derma „Haut“] * * * Me|so|dẹrm, das; s, e [zu griech. dérma = Haut] (Biol., Med.): (während der Embryonalphase) bei vielzelligen Tieren …   Universal-Lexikon

  • mesoderm — n. the middle germ layer of the early embryo. It gives rise to cartilage, muscle, bone, blood, kidneys, gonads and their ducts, and connective tissue. It separates into two layers – an outer somatic and an inner splanchnic mesoderm, separated by… …   The new mediacal dictionary


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