Fertilization
Fertilization: The process of combining the male gamete, or sperm, with the female gamete, or ovum. The product of fertilization is a cell called a zygote.
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- Fertilization, in vitro
Fertilization, in vitro: IVF, a laboratory procedure in which sperm are placed with an unfertilized egg in a Petri dish to achieve fertilization. The embryo is then transferred into the uterus to begin a pregnancy or cryopreserved (frozen) for future use. IVF was originally devised to permit women with damaged or absent Fallopian tubes to […]
- Fetal alcohol effects (FAE)
Fetal alcohol effects (FAE): A softer diagnosis than fetal alcohol syndrome (FAS). The diagnosis of possible FAE is considered when: 1. The person has some signs of FAS; 2. The person does not meet all of the necessary criteria for FAS; and 3. There is a history of alcohol exposure before birth.
- Fetal alcohol syndrome
The sum total of the damage done to the child before birth as a result of the mother drinking alcohol during pregnancy. Fetal alcohol syndrome (FAS) always involves brain damage, impaired growth, and head and face abnormalities. No amount of alcohol has been proven safe during pregnancy. Women who are or may become pregnant are […]
- Fetal circulation
Fetal circulation: The blood circulation in the fetus (an unborn baby). Before birth, blood from the fetal heart that is destined for the lungs is shunted away from the lungs through a short vessel called the ductus arteriosus and returned to the aorta. When this shunt is open, it is said to be a patent […]
- Fetal distress
Fetal distress: Compromise of a fetus during the antepartum period (before labor) or intrapartum period (during the birth process). The term fetal distress is commonly used to describe fetal hypoxia (low oxygen levels in the fetus), which can result in fetal damage or death if it is not reversed or if the fetus is not […]