Define the term teratology. Explain how risk analysis is performed as part of this field of study. How many studies and how many teratogens are known at this time? What are the different categories and types of teratogens?
What will be an ideal response
Teratology is the study of birth defects. Risk analysis is a complex scientific method
which evaluates the chances that a particular teratogen will affect the fetus. There
are many factors involved in this analysis including the health of the mother, the
substances that will cross the placenta from mother to fetus, prenatal care, etc. Over
10,000 animal and human studies have shown that hundreds of teratogens exist.
Teratogens include diseases, drugs, environmental pollutants, stress, malnutrition,
poor living conditions, etc. The answer should also explain that behavioral
teratogens are those which lead specifically to behavioral or social problems.
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Research by Moy and Pfau (2000) has shown that people who watch TV, read newspapers, and/or listen to politically oriented radio broadcasts are
a. more cynical of government b. less cynical of government c. sometimes more and sometimes less cynical of government d. not affected by them
A common action of epinephrine, norepinephrine, and cortisol is to:
a. Decrease cardiac output b. Inactivate the sympathetic nervous system c. Make more glucose available for activity d. Activate the parasympathetic nervous system
Whorf's linguistic relativity hypothesis helps explain why:
A. The Dani tribe has two names for colors B. Children have an innate ability to learn grammatical rules C. bilingual people think differently in each language D. athletes are better able to think in images
Which of the following can be identified by maternal blood screening?
a. down syndrom b. spina bifida c. babys sex d. infertility.