| foetal membrane | A structure or tissue that develops from the fertilised ovum but does not form part of the embryo proper. Synonym: embryonic membrane, extraembryonic membrane. (05 Mar 2000) |
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| foetal membranes | Thin layers of tissue which surround the embryo or foetus and provide for its nutrition, respiration, excretion and protection; they are the yolk sac, allantois, amnion, and chorion. (12 Dec 1998) |
| foetal membranes, premature rupture | Spontaneous rupture of amniotic sac before the onset of uterine contractions. (12 Dec 1998) |
| foetal monitoring | Physiologic or biochemical monitoring of the foetus. It is usually done during labour and may be performed in conjunction with the monitoring of uterine activity. It may also be performed prenatally as when the mother is undergoing surgery. (12 Dec 1998) |
| foetal mortality rate | <epidemiology> The ratio of foetal deaths divided by the sum of the births (the live births + the foetal deaths) in that year. In the United States, the foetal mortality rate plummeted from 19.2 per 1,000 births in 1950 to 9.2 per 1,000 births in 1980. (12 Dec 1998) |
| foetal movement | <obstetrics> Movement of the foetus in the womb perceived by the mother and felt by palpation of the abdomen. The first foetal movements felt by the mother during pregnancy (quickening) are usually between18 and 22 weeks of pregnancy. (08 Mar 2000) |
| foetal organ maturity | <embryology> Functional competence of specific foetal organs or body systems. In humans, it is usually assessed by analysis of amniotic fluid, as in the assessment of foetal lung maturity by analysis for components of pulmonary surfactant. (08 Mar 2000) |
| foetal ovoid | <embryology> The form of the foetus in utero; its length is about one-half of the length of the extended foetus. (05 Mar 2000) |
| foetal placenta | <embryology> Placenta foetalis, the chorionic portion of the placenta, containing the foetal blood vessels, from which the funis develops; specifically, in humans, it develops from the chorion frondosum. Synonym: pars foetalis placentae. (05 Mar 2000) |
| foetal resorption | <obstetrics> Death and resorption of the foetus at any stage after the completion of organogenesis. It does not include embryo resorption. (12 Dec 1998) |
| foetal reticularis | Synonym: foetal adrenal cortex. Synonym: androgenic zone. Synonym: X zone. (05 Mar 2000) |
| foetal souffle | <obstetrics, paediatrics> A blowing murmur, synchronous with the foetal heart beat, sometimes only systolic and sometimes continuous, heard on auscultation over the pregnant uterus. Synonym: funic souffle, funicular souffle, umbilical souffle. (05 Mar 2000) |
| foetal tachycardia | <obstetrics, paediatrics> A foetal heart rate of 160 or more beats per minute. (05 Mar 2000) |
| foetal tissue transplantation | Transference of foetal tissue between individuals of the same species or between individuals of different species. (12 Dec 1998) |
| foetal trimethadione syndrome | <paediatrics, syndrome> A foetal syndrome resulting from maternal ingestion of trimethadione during the early weeks of pregnancy and characterised by developmental delay, V-shaped eyebrows, epicanthus, low-set ears with anteriorly folded helix, palatal anomaly, and irregular teeth. (05 Mar 2000) |