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9 Cards in this Set

  • Front
  • Back
Conception, also known as _____, is the union of the male sperm cell and the female egg cell.
Fertalization
Dizyotic twins (also known as _____ twins) result when two eggs are realesed from the ovary in one menstral cycle and ferrilized at the same time.
Fraternal
One pair of chromosomes determines the sex of the individual, with the usual arrangement of males having one X and one ___ chromosome and females having two X chromosomes.
Y
For the first eight weeks of gestation, the material is known as an ____.
Embryo
Early signs of pregnancy often occur within the first six weeks and include:

a) _____ periods
b) _____ Swelling/tenderness
c) _____ Body temperature
d) _____ urination
a) missed
b) breast
c) slightly elevated
d) frequent
The presence of this hormone in the women's system produces a positive pregnancy test result because ______ can be detected in the women's blood and urine.
Human Chronic Goradotropin (HCG)
The _____ fluids protects the embryo from shocks and bumps and helps maintain a homeostatic, or constant enviroment for the developing embryo.
Amniotic fluid
The ___ is an organ that supplies the growing fetus with oxygen and nutrients from the maternal bloodstrream and serves as a conduit for the return of waste products to the mother for disposal.
Placenta
_____ acid, the synthetic form of the B vitamin folate, appears to help prevent neural tube defects such as a spina bifida.
Folic acid