Trigeminal neuralgia is caused by compression of ____
a. cranial nerve II
b. ganglia
c. cranial nerve V
d. one of the lumbar spinal nerves
e. one of the sacral spinal nerves
ANSWER: c
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Which chromosomal change rarely has an effect on the phenotype of the individual who carries it?
A. Robertsonian translocation B. Unbalanced translocation C. Balanced translocation D. Chromosome loss
In what clinical situation is it most appropriate to use a broad-spectrum antimicrobial?
A. In an example of a pediatric otitis media (middle ear) infection. We can't properly test for the specific drug that would best eliminate the infection due to its location, so we use a broad-spectrum drug instead. B. In a case of viral meningitis. The infection spreads so quickly that we must treat it with an antibacterial drug as quickly as possible. We don't have time to determine which drug will work best, because the patient will die in the meantime. C. In a case of bacterial meningitis. The infection spreads so quickly that we must treat it with an antibacterial drug as quickly as possible. We don't have time to determine which drug will work best, because the patient will die in the meantime. D. In a case of Staphylococcus aureus skin infection. Since this microbe can be resistant to several types of drugs, we want to use one that has the broadest spectrum possible to treat this microbe-specific infection.
Which of the following characteristics is NOT
present in all animal phyla? a. multicellularity b. organ systems c. heterotrophy d. diploidy e. sexual reproduction
The steady charge difference across the plasma membrane is called the
a. action potential. b. energy potential. c. electrolyte potential. d. resting membrane potential. e. kinetic potential.