PMID: 46709Jan 1, 1975

An electron microscopic study of fetal capillary basal laminas of "normal" human term placentas

American Journal of Obstetrics and Gynecology
J J MartinekG F Essig


Electron microscopic examination of terminal (free-floating) villi of definable normal human term placentas emphasizes the variable fine structural appearance of the fetal capillary basal lamina (FL). The FL assumes both a unilaminar and multilamellar configuration in each placenta examined; the multilamellar portions are usually composed of individual layers which tend to branch and anastomose. The constant indentification of collagen fibrillar profiles between these electron-dense layers argues against the notion that the multilamellar portions of the FL arise via a simple splitting or disaggregation of pre-existing unilaminar FL's.


Jan 1, 1989·Anatomy and Embryology·G E OwitiA G Hendrickx

Related Concepts

Placenta Specimen
Vascular Permeability
Basal Lamina
Specimen Collection
Electron Microscopy
Entire Capillary Blood Vessel (Organ)

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