Hypoblast

Hypoblast

Infobox Embryology
Name = PAGENAME
Latin =
GraySubject =
GrayPage =


Caption = Section through the embryo. (Hypoblast visible but not labeled.)


Caption2 = "D" points to the hypoblast.
System =
CarnegieStage =
Days = 8
Precursor = inner cell mass
GivesRiseTo = endoderm
MeshName =
MeshNumber =
DorlandsPre = h_21
DorlandsSuf = 12437720
The hypoblast is a tissue type that forms from the inner cell mass. [ [http://embryology.med.unsw.edu.au/Notes/Index/H.htm UNSW Embryology- Glossary H ] ] It lies beneath the epiblast and consists of small cuboidal cells. [Moore, K. L., and Persaud, T. V. N. (2003). "The Developing Human: Clinically Oriented Embryology". 7th Ed. Philadelphia: Elsevier. ISBN: 0-7216-9412-8.]

Extraembryonic endoderm (including Yolk sac) is derived from hypoblast. [Dorlands|h_21|12437720]

References

External links

* http://www.embryology.ch/allemand/iperiodembry/carnegie02.html
* http://www.med.umich.edu/lrc/coursepages/M1/embryology/embryo/04secondweek.htm
* http://isc.temple.edu/marino/embryology/EMBII97/sld005.htm


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  • 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

  • Hypoblást — (griech.), das innere Keimblatt (Entoderm), s. Entwickelungsgeschichte, S. 845 …   Meyers Großes Konversations-Lexikon

  • Hypoblást — (grch.), das innere Keimblatt (s. Gastrula) …   Kleines Konversations-Lexikon

  • hypoblast — [hī′pō blast΄, hip′ōblast΄] n. [ HYPO + BLAST] the endoderm of a gastrula hypoblastic adj …   English World dictionary

  • Hypoblast — Der Hypoblast ist als eine Struktur der frühen Embryonalentwicklung vieler Wirbeltiere neben dem Epiblasten, dem Embryoblasten und dem Trophoblasten ein Teil der sich entwickelnden Blastula oder Blastocyste. Oft wird er für die Vorstufe des… …   Deutsch Wikipedia

  • hypoblast — noun Date: 1875 the endoderm of an embryo …   New Collegiate Dictionary

  • hypoblast — the inner of two layers of the blastoderm that forms during gastrulation and gives rise to the mesoderm and endoderm …   Dictionary of ichthyology

  • hypoblast — n. [Gr. hypo, under; blastos, bud] Endoderm in early embryos, entoderm; see endoderm …   Dictionary of invertebrate zoology

  • hypoblast — hypoblastic, adj. /huy peuh blast /, n. Embryol. 1. the endoderm. 2. the cells entering into the inner layer of a young gastrula, capable of becoming endoderm and, to a certain extent, mesoderm. [1820 30; HYPO + BLAST] * * * …   Universalium

  • hypoblast — noun A type of tissue that forms from the inner cell mass and later is incorporated into the endoderm See Also: embryoblast, epiblast, periblast, trophoblast …   Wiktionary

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