Which of the following bones is a single unpaired bone?
A. Ethmoid
B. Parietal
C. Maxilla
D. Zygomatic
E. Palatine
A. Ethmoid
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Which of the following leads to an increase in the ratio of LDL cholesterol to HDL cholesterol?
A. Exercise B. Weight reduction C. Cigarette smoking D. Estrogens E. All of these increase the LDL:HDL ratio.
Stephanie is in a car accident, flung from her vehicle and landing on her back on
pavement. At the scene, an emergency medical technician checks her Babinski reflex, in which the great toe extends upward and the smaller toes fan apart. This reflex A) may indicate an injury to the corticospinal tract. B) is meaningless in assessing an emergency situation. C) is normal in adults. D) may indicate aging of the corticospinal tract.
Which of the following does not cause relaxation of smooth muscle within local arterioles?
a. carbon dioxide b. endothelin c. nitric oxide d. histamine e. increased osmolarity
Damage to which cranial nerve would be associated with both sensory and motor deficits?
A. VIII B. VII C. I D. II