Substance produced by the unborn baby as it grows inside the uterus. Large amounts of AFP are found in the amniotic fluid. Larger-than normal amounts are found in the maternal bloodstream if neural-tube defects are present in the fetus.
Area of tissue in early development of the embryo that gives rise to other structures. These include the digestive tract, respiratory organs, vagina, bladder and urethra. Also called endoderm or entoderm.
Regular development of the mucous membrane lining the inside of the uterus. It begins with the preparation for acceptance of a pregnancy and ends with the shedding of the lining during a menstrual period.
Device used before or during labor to listen to and record the fetal heartbeat. Can be external monitoring (through maternal abdomen) or internal monitoring (through maternal vagina) of the baby inside the uterus.
Development of specific antibody directed at the red blood cells of another individual, such as a baby in utero. Often occurs when an Rh-negative woman carries an Rh-positive baby or is given Rh-positive blood.
Cord that connects the placenta to the developing baby. It removes waste products and carbon dioxide from the baby and brings oxygenated blood and nutrients from the mother through the placenta to the baby.