Epinephrine and norepinephrine
a. have a generalized vasoconstrictor effect.
b. promote vasodilation of blood vessels supply muscles.
c. promote mobilization of stored carbohydrates.
d. dilate respiratory airways.
e. none of these.
A
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The central cavity of a tooth is filled with
A. dentin. B. enamel. C. pulp. D. cementum. E. calcium phosphate.
The bone that makes up the lower jaw is the
A) mandible. B) maxillary. C) zygomatic. D) temporal. E) cribriform plate.
The bundle of nerve roots that occupy the vertebral canal from L2 to S5 is called the ________.
A. cauda equina B. lumbosacral enlargement C. medullary cone D. spinal cord E. cervical enlargement
The fact that most of us have five lumbar vertebrae, but some people have six and some have four, is an example of ________ variation among organisms.
A. reductionist B. anatomical C. holistic D. physiological E. cellular