Difference between revisions of "Placenta"
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==Membranes== | ==Membranes== | ||
Fetus to mother: | |||
*Amnion - thin layer: one cell layer, basement membrane, connective tissue. | |||
*Cleft - artifactual - empty space. | |||
*Chorion - vascular. | |||
*Decidua (maternal tissue) - may contain obsolete chorionic villi; place to look for hypertensive changes. | |||
===Amnion=== | ===Amnion=== | ||
General: | General: | ||
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*Has blood vessels. | *Has blood vessels. | ||
*Opposed to "trophoblastic X cells" on side opposite of amnion.<ref name=Ref_H4P2_974>{{Ref H4P2|974}}</ref> | *Opposed to "trophoblastic X cells" on side opposite of amnion.<ref name=Ref_H4P2_974>{{Ref H4P2|974}}</ref> | ||
**Beneath of the "trophoblastic X cells" is ''decidua'' (mnemonic ''NEW'' = nucleus central, eosinophilic, well-defined cell border), which is maternal tissue. | **Beneath of the "trophoblastic X cells" is ''decidua'' (mnemonic ''NEW'' = nucleus central, eosinophilic, well-defined cell border), which is maternal tissue. | ||
==Common terms== | ==Common terms== | ||