Passer au contenu principal

Medical Subject Headings (thesaurus)

Choisissez le vocabulaire dans lequel chercher

aligner
annoter
télécharger

Concept information

Embryonic Structures > Placenta > Trophoblasts
Cells > Endocrine Cells > Trophoblasts
Embryonic Structures > Embryo, Mammalian > Blastocyst > Trophoblasts

Terme préférentiel

Trophoblasts  

Type

  • mesh:Descriptor

Définition

  • Cells lining the outside of the BLASTOCYST. After binding to the ENDOMETRIUM, trophoblasts develop into two distinct layers, an inner layer of mononuclear cytotrophoblasts and an outer layer of continuous multinuclear cytoplasm, the syncytiotrophoblasts, which form the early fetal-maternal interface (PLACENTA). Trophoblasts with single nucleus and defined cellular structures. As the PLACENTA develops, pockets of cytotrophoblasts serve as stem cells for syncytiotrophoblasts. Trophoblasts with multinuclear cytoplasm and undefined cellular structures. Syncytiotrophoblasts secrete proteolytic enzymes that erode the ENDOMETRIUM for EMBRYO IMPLANTATION. They also produce steroid, peptide, and protein hormones (PLACENTAL HORMONES).

Concept générique

Synonyme(s)

  • Trophoblast

Qualificatif(s) autorisé(s)

Traductions

URI

http://data.loterre.fr/ark:/67375/JVR-NJZFLKK8-V

Télécharger ce concept :

RDF/XML TURTLE JSON-LD Date de création 01/01/1999, dernière modification le 08/07/2008