endoderm

The innermost of the three primary germ layers of the embryo (ectoderm, mesoderm, e.); from it is derived the epithelial lining of the primitive gut tract and the epithelial component of the glands and other structures ( e.g., lower respiratory system) that develop as outgrowths from the gut tube. SYN: entoderm. [endo- + G. derma, skin]

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en·do·derm 'en-də-.dərm n the innermost of the three primary germ layers of an embryo that is the source of the epithelium of the digestive tract and its derivatives and of the lower respiratory tract also a tissue that is derived from this germ layer
en·do·der·mal .en-də-'dər-məl adj

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n.
the inner of the three germ layer of the early embryo, which gives rise to the lining of most of the alimentary canal and its associated glands, the liver, gall bladder, and pancreas. It also forms the lining of the bronchi and alveoli of the lung and most of the urinary tract.
endodermal adj.

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en·do·derm (enґdo-dərm) [endo- + -derm] the innermost of the three primary germ layers of the embryo; from it are derived the epithelium of the pharynx, respiratory tract (except the nose), digestive tract, bladder, and urethra. Called also entoderm, endoblast, and entoblast. Cf. ectoderm and mesoderm.

Medical dictionary. 2011.

Look at other dictionaries:

  • Endoderm — Organs derived from endoderm …   Wikipedia

  • endoderm — ENDODÉRM, endoderme, s.n. 1. Foiţa interioară a embrionului animalelor superioare, din care provin tubul digestiv şi glandele anexe. 2. Strat unicelular al peretelui corpului la celenterate. 3. Albumen. – Din fr. endoderme. Trimis de claudia,… …   Dicționar Român

  • Endoderm — En do*derm, n. [Endo + Gr. ? skin.] (Biol.) (a) The inner layer of the skin or integument of an animal. (b) The innermost layer of the blastoderm and the structures derived from it; the hypoblast; the entoblast. See Illust. of {Ectoderm} …   The Collaborative International Dictionary of English

  • endoderm — 1835, from ENDO (Cf. endo ) + DERM (Cf. derm). Coined by Prussian embryologist Robert Remak (1815 1865) …   Etymology dictionary

  • endoderm — [en′dō dʉrm΄] n. [ ENDO + DERM] the inner layer of cells of the embryo, from which is formed the lining of the digestive tract, of other internal organs, and of certain glands endodermal adj. endodermic …   English World dictionary

  • endoderm — endodermal, endodermic, adj. /en deuh derrm /, n. 1. Also called endoblast. Embryol. the innermost cell layer of the embryo in its gastrula stage. 2. Anat. the innermost body tissue that derives from this layer, as the gut lining. Also, entoderm …   Universalium

  • endoderm — Hypoblast Hy po*blast, n. [Pref. hypo + blast.] (Biol.) The inner or lower layer of the blastoderm; called also {endoderm}, {entoderm}, and sometimes {hypoderm}. See Illust. of {Blastoderm}, {Delamination}, and {Ectoderm}. [1913 Webster] …   The Collaborative International Dictionary of English

  • endoderm — noun Etymology: French endoderme, from end + Greek derma skin more at derm Date: 1861 the innermost of the three primary germ layers of an embryo that is the source of the epithelium of the digestive tract and its derivatives and of the lower… …   New Collegiate Dictionary

  • Endoderm — Das Entoderm (von griech. to enteron „Darm“, eigentlich „das Innere“ und to derma „Haut“) ist das innere Keimblatt des Embryoblasten. Das Entoderm ist nicht zu verwechseln mit der Endodermis der Pflanzen. Aus dem Entoderm bilden sich die… …   Deutsch Wikipedia

  • endoderm — n. [Gr. endon, within; derma, skin] 1. The innermost cell layer of the embryo forming the epithelium of the archenteron, endoblast, entoderm, and hypoblast. 2. (CNIDARIA) Layer of cells lining the gastrovascular cavity. 3. (PORIFERA) see… …   Dictionary of invertebrate zoology

  • endoderm — A germ layer lying remote from the surface of the embryo that gives rise to internal tissues such as gut. Contrast mesoderm and ectoderm …   Dictionary of molecular biology


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