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.

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.

Biologia incrementalis
Embryologia