decidua

(redirected from basal decidua)
Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

decidua

 [de-sid´u-ah]
a name applied to the endometrium during pregnancy, all of which except for the deepest layer is shed after childbirth; called also decidual or deciduous membranes. adj., adj decid´ual.
basal decidua (decidua basa´lis) that portion lying under the implanted ovum and chorion.
capsular decidua (decidua capsula´ris) that portion directly overlying the implanted ovum and chorion, facing the uterine cavity.
menstrual decidua (decidua menstrua´lis) the hyperemic uterine mucosa shed during menstruation.
parietal decidua (decidua parieta´lis) (true decidua) (decidua ve´ra) the decidua exclusive of the area occupied by the implanted ovum and chorion.

de·cid·u·a

(dē-sid'yū-ă),
The endometrium of the uterus in a pregnant woman.
[L. deciduus, falling off]

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.

decidua

(dĭ-sĭj′o͞o-ə)
n. pl. decid·uas or decid·uae (-o͞o-ē′)
A mucous membrane lining the uterus, modified during pregnancy and shed at parturition or during menstruation.

de·cid′u·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

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

de·cid·u·a

(dē-sij'ū-ă)
The endometrium of the pregnant uterus that has undergone changes, under the influence of hormones produced by the ovarian (ovulation) cycle, to prepare it for the implantation and nutrition of the blastocyst; so-called because the membrane is cast off after labor.
Synonym(s): deciduous membrane, membrana decidua.
[L. deciduus, falling off]

decidua

The thick lining of the womb (endometrium) during pregnancy with its associated membranes that are cast off with the PLACENTA after the birth of the baby.

decidua

that part of the lining of the uterus of mammals which, after thickening during pregnancy, is shed as AFTERBIRTH at parturition.

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).