Substances that can cause birth defects or the death of the embryo are referred to as ________.
Fill in the blank(s) with the appropriate word(s).
teratogens
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For the repolarization phase of an SA nodal cell action potential,
A. sodium and potassium channels open. B. calcium channels open and sodium channels close. C. calcium and potassium channels close. D. calcium channels close and potassium channels open. E. sodium and chloride channels open.
Pepsinogen, an inactive digestive enzyme, is secreted by the ________
A) parietal cells of the duodenum B) goblet cells of the small intestine C) Brunner's glands D) chief cells of the stomach
The higher the schedule number (for example, V versus I) of a controlled-substance drug, a. the higher the risk for human abuse potential
b. the more questionable its manufacture is. c. the lower the risk for human abuse potential. d. the less medical value it has.
What congenital disorder can occur when there is a temporary lack of oxygen during delivery of a baby?
A) hydrocephalus B) anencephaly C) spina bifida D) cerebral palsy