placentation


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plac·en·ta·tion

 (plăs′ən-tā′shən)
n.
1.
a. Formation of a placenta in the uterus.
b. The type or structure of a placenta.
2. Botany Arrangement of placentas within the ovary.

placentation

(ˌplæsɛnˈteɪʃən)
n
1. (Botany) botany the way in which ovules are attached in the ovary
2. (Zoology) zoology
a. the way in which the placenta is attached in the uterus
b. the process of formation of the placenta
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.placentation - the formation of the placenta in the uterus
bodily function, bodily process, body process, activity - an organic process that takes place in the body; "respiratory activity"
2.placentation - arrangement of the ovules in the placenta and of the placentas in the ovary
reproductive structure - the parts of a plant involved in its reproduction
apical placentation - where one or few ovules develop at the top of a simple or compound ovary
axile placentation - ovules are borne at or around the center of a compound ovary on an axis formed from joined septa
basal placentation - where one or few ovules develop at the base of a simple or compound ovary
free central placentation - where ovules develop on a central column in a compound ovary lacking septa or with septa at base only
lamellate placentation - with ovules on thin extensions of the placentae into a compound ovary
marginal placentation, ventral placentation - with ovules borne on the wall along the ventral suture of a simple ovary
parietal placentation - where ovules develop on the wall or slight outgrowths of the wall forming broken partitions within a compound ovary
References in periodicals archive ?
10],[11],[12] Furthermore, many studies found that CS may increase maternal morbidity, neonatal mortality, and other complications in subsequent pregnancies including abnormal placentation and uterine rupture.
Abnormal placentation was the primary cause of caesarean hysterectomy in many studies as reported by Majeed et al and Chisara et al17,18.
18) The presence of hypointense, irregular intraplacental bands on T2-weighted sequences, analogous to the vascularized lacuna seen on ultrasound, is strongly associated with abnormalities of placentation.
This has not only given rise to a surge in complications like abnormal placentation and uterine rupture, but also in the incidence of atonic postpartum haemorrhage.
Folic acid is important for female reproduction, including oocyte quality and maturation, implantation, placentation, fetal growth, and organ development.
Killer-cell immunoglobulin-like receptors (KIRs) are expressed at the site of placentation by Natural Killer cells (NK cells).
The hospital is not equipped to care for preterm infants, so deliveries earlier than 36 weeks are referred, as are patients with abnormal placentation or fetal anomalies detected on ultrasound.
These include known congenital anomalies, multiple gestations, in neonates in whom immediate resuscitation is required (eg, the presence of meconium or cord entanglement), and abnormal placentation (eg, placenta previa or abuption).
The conference organized into three sections, namely: 1) Gametes and infertility, 2) Implantation, placentation and early birth, and 3) Prospects of embryology.
An abnormal placentation into the uterine wall could present a risk of maternal and fetal morbidity (morbidly adherent placenta, MAP) and mortality, so it should be identified and defined early on (1, 2).
Maternal air pollution exposure may affect pregnancy by inducing oxidative stress and systemic inflammation, decreasing the degree of placental global DNA methylation, and eliciting suboptimal placentation or placental inflammation (Brook et al.
pylori infection which negatively interferes with the development of placentation.