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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.
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Fertalization
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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.
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Fraternal
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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.
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Y
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For the first eight weeks of gestation, the material is known as an ____.
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Embryo
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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 |
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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.
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Human Chronic Goradotropin (HCG)
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The _____ fluids protects the embryo from shocks and bumps and helps maintain a homeostatic, or constant enviroment for the developing embryo.
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Amniotic fluid
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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.
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Placenta
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_____ acid, the synthetic form of the B vitamin folate, appears to help prevent neural tube defects such as a spina bifida.
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Folic acid
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