Teratogens are substances that
A) protect against infections. B) stimulate embryonic growth.
C) cause congenital malformations. D) cause genetic disease.
C
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In response to high blood pressure, stretch receptors called __________ in the walls of arteries carrying blood to the head will trigger a reflex that causes the heart to __________ its beats per minute.
A. baroreceptors; decrease B. proprioceptors; decrease C. baroreceptors; increase D. proprioceptors; increase E. chemoreceptors; increase
All of the following are posterior leg muscles except the
A. popliteus. B. gastrocnemius. C. extensor digitorum longus. D. soleus. E. All of these are posterior leg muscles.
Which of the following arteries is not part of the cerebral arterial circle (circle of Willis)?
A. anterior communicating artery B. posterior cerebellar artery C. posterior communicating artery D. anterior cerebral artery E. internal carotid artery
Which of the following cell types is most numerous in the lung?
A. Squamous (type I) alveolar cells B. Great (type II) alveolar cells C. Ciliated columnar epithelial cells D. Goblet cells E. Alveolar macrophages