Syncytiotrophoblastus

Syncytiotrophoblastus (a Graecis 'syn' 'una' + 'cytio' 'cellularum' + 'tropho' 'nutrimentum' + 'blastus' 'gemma') est tegman epitheliale magnopere vascularium placentae embryonicae villorum, quod in vallum uterinum invadit ut circulationem nutrimentorum inter embryonem et matrem constituat. Textus est unicus quia in syncytio multinucleato et discreto consistit, quod ad 13 centimetra extenditur. Syncytiotrophoblastus est exterius trophoblastorum stratum quod in vallum uterinum avide invadit, capillarias rumpens et sic coniunctionem inter sanguinem maternum et embryonicum fluidum extracellulare constituens, permutationem materiae inter matrem et embryonem facilius reddens.

Primarii villi chorionici. Diagramma.

Secundarii villi chorionici. Diagramma.

Nexus interni

• Blastocoele
• Cytotrophoblastus
• Endometrium
• Syncytium
• Trophoblastus
• Trophoblastus intermedius

Bibliographia

• Musicki, B., G. Pepe, et E. Albrecht. 1997. Functional differentiation of placental syncytiotrophoblasts during baboon pregnancy: developmental expression of chorionic somatomammotropin messenger ribonucleic acid and protein levels. Journal of Clinical Endocrinological Metabolism 82(12):4105–10. PMID 9398722. doi:10.1210/jc.82.12.4105. Textus.
• Plant, Tony M., et Anthony J. Zeleznik. Knobil and Neill's Physiology of Reproduction: Two-Volume Set.

Nexus externi

• Diagramma. nature.com.
• Diagramma. sprojects.mmi.mcgill.ca.