| incomplete foot presentation | See: breech presentation. (05 Mar 2000) |
|---|---|
| transverse presentation | An abnormal presentation, neither head nor breech, in which the foetus lies transversely in the uterus across the axis of the parturient canal. (05 Mar 2000) |
| labour presentation | The part of the foetal body that is in advance in the birth canal. (12 Dec 1998) |
| footling presentation | <obstetrics> There are single-footling or double-footling presentations depending upon whether the presenting part of the baby at delivery is just one foot or both feet. (12 Dec 1998) |
| full breech presentation | The thighs may be flexed on the abdomen and the legs upon the thighs, in footling presentation foot presentation the feet may be the lowest part; in incomplete foot presentation, incomplete knee presentation, one leg may retain the position which is typical of one of the above-mentioned presentations, while the other foot or knee may present. Synonym: pelvic presentation. (05 Mar 2000) |
| abnormal placental size | <radiology> TOO BIG (greater than5cm in sections obtained at right angles to the long axis), maternal disease, diabetic mothers (= villous oedema), intrauterine infections, anaemic mothers (= normal histology), foetal disease, erythroblatosis foetalis (= villous oedema and hyperplasia), umbilical vein obstruction, foetal high output failure, large chorioangioma, sacrococcygeal teratoma, arteriovenous fistula too small, preeclampsia (associated with placental infarcts in 33-60%) (12 Dec 1998) |
| placental | 1. Of or pertaining to the placenta; having, or characterised by having, a placenta; as, a placental mammal. 2. <zoology> Of or pertaining to the Placentalia. <zoology> One of the Placentalia. Source: Websters Dictionary (01 Mar 1998) |
| placental abruption | <obstetrics> An third trimester complication that results from the haemorrhage and accumulation of blood between the placenta and the wall of the uterus. This inevitably interferes with foetal oxygenation and often necessitates the need for emergency cesarean section delivery. (31 Dec 1997) |
| placental barrier | The semipermeable layer of foetal tissue separating the maternal from the foetal blood in the placenta; composed of: 1) endothelium of the foetal vessels in the chorionic villi, 2) stromata of the villi, 3) cytotrophoblast (negligible after the fifth month of gestation), and 4) syncytial trophoblast covering the villi; the placental membrane acts as a selective membrane regulating passage of substances from the maternal to the foetal blood. Synonym: placental barrier. (05 Mar 2000) |
| placental calcium-binding protein | <protein> Calcium binding protein of placenta, uterus and vasculature containing the EF hand motif. (18 Nov 1997) |
| placental chorioangioma | <radiology> Most common benign tumour of placenta, incidence: 0.7%, Differential diagnosis: hydatidaform mole, large leiomyoma, chorioepithelioma, complications: IUGR, foetal anomaly, polyhydramnios, haemorrhage, heart failure, premature labour (12 Dec 1998) |
| placental circulation | The circulation of blood through the placenta during intrauterine life, serving the needs of the foetus for aeration, absorption, and excretion; also, maternal circulation through the intervillous space of the placenta. (05 Mar 2000) |
| placental dysfunction | 1. Denoting faulty development or ripening; often connoting structural and/or functional abnormalities. 2. In obstetrics, denoting an infant whose birth weight is inappropriately low for its gestational age. 3. Immature development of the placenta so that normal function does not occur. Synonym: placental dysfunction. (05 Mar 2000) |
| placental dysfunction syndrome | <syndrome> Foetal malnutrition and hypoxia resulting from impaired transfer of oxygen and various nutritive materials from mother to foetus. (05 Mar 2000) |
| placental dysmature | Immature development of the placenta so that normal function does not occur. (05 Mar 2000) |