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decidua

   Also found in: Dictionary/thesaurus, Wikipedia 0.06 sec.
decidua /de·cid·ua/ (dĕ-sid´u-ah) the endometrium of the pregnant uterus, all of which, except the deepest layer, is shed at parturition.decid´ual
basal decidua , decidua basa´lis that portion directly underlying the chorionic sac and attached to the myometrium.
capsular decidua , decidua capsula´ris that portion directly overlying the chorionic sac and facing the uterine cavity.
parietal decidua , decidua parieta´lis that portion lining the uterus elsewhere than at the site of attachment of the chorionic sac.
de·cid·u·a (d-sj-)
n. pl. de·cid·u·as or de·cid·u·ae (--)
A mucous membrane lining the uterus, modified during pregnancy and shed at parturition or during menstruation. Also called deciduous membrane.
de·cidu·al adj.
decidua
[disij′o̅o̅·ə]
Etymology: L, decidere, to fall off
the epithelial tissue of the endometrium lining the uterus. It envelops the conceptus during gestation and is shed in the puerperium. It is also shed periodically with menstruation. Kinds of decidua are decidua basalis, decidua capsularis, and decidua vera. See also amniotic sac.
decidua
a name applied to the human and primate endometrium during pregnancy, all of which except for the deepest layer is shed after birth of the young. Called also the decidual, or deciduous, membrane.
basal decidua, decidua basalis
that portion on which the implanted ovum rests.
capsular decidua, decidua capsularis
that portion directly overlying the implanted ovum and facing the uterine cavity.
parietal decidua
the decidua exclusive of the area occupied by the implanted ovum. Called also true decidua, decidua verra.
true decidua
see parietal decidua (above).
decidua verra
see parietal decidua (above).
decidua
Gynecology Endometrial tissue that has been structurally and functionally transformed by pregnancy; 'decidualization' begins at conception's inception, and is complete by the end of the first month


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On the maternal side of the interface, the uterine tissue in contact with the placenta and fetal membranes, the decidua, is rich in specialized maternal immune cells including lymphocytes and macrophages (2).
Emerging infections and pregnancy by Rasmussen, Sonja A. / Emerging Infectious Diseases
Glutathione S-transferase isoenyzmes in decidua and placenta of preeclamptic pregnancies.
Incorporating children's toxicokinetics into a risk framework by Sonawane, Babasaheb / Environmental Health Perspectives
And the diminutive wood-and-plaster sculptures He Varies His Ills to Vary His Pleasure, with its buck-toothed bunny, and the informe Decidua, with its dual reference to "deciduous" baby teeth and the uterine membrane shed at childbirth (the decidua), offered ruminations on life, loss, and teeth in the animal kingdom, where utility overrides aesthetic concerns.
MEG CRANSTON by Schwendener, Martha / Artforum International
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