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Die Ultrastruktur der Meerschweinchen‐Subplazenta
Author(s) -
Wolfer Jens,
Kaufmann Peter
Publication year - 1980
Publication title -
anatomia, histologia, embryologia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.34
H-Index - 35
eISSN - 1439-0264
pISSN - 0340-2096
DOI - 10.1111/j.1439-0264.1980.tb00838.x
Subject(s) - gynecology , medicine
The significance of the subplacenta, a special organ present only in hystricomorphous rodents, is generally not known. In the present study of the ultrastructure of this organ the subplacentas of 35 conventional, domestic, genetically undefined guinea pigs during the 19th to the 65th day of their pregnancy were used. The subplacentas were fixed by immersionand studied histologically on semi‐thin sections and by transmission electronmicroscopy. The findings clarify the development and regression of the maternal blood lacunae. Hereby wasshown that the subplacenta in none of its developmental stages was supplied simultaneouslyby maternal and fetal blood. The function of the subplacenta is seen in the preparation of anot yet identified but ultrastructurally visible secretion.