The gate control theory of pain is best described by which of the following?
A. TRP channels are gated by temperature.
B. Activation of low threshold mechanoreceptors can reduce or block the activity of ascending pain pathways.
C. GABA inhibits neurons in the spinal cord.
D. Following sensitization, a pain fiber begins responding to nondamaging tactile stimuli.
ANS: B
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A. secretes to a surface. B. is a secretory organ. C. sheds cells with its secretions. D. has no ducts. E. contains goblet cells.
The term "codon" refers to
A. a three-nucleotide sequence of DNA that codes for a protein. B. an amino acid that is coded for by three bases of DNA. C. a three-base sequence of mRNA. D. the part of a rRNA molecule where a new amino acid is added. E. the part of tRNA that is a triplet of bases that forms hydrogen bonds with complementary sequences.
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A) efflux, efflux B) influx, influx C) efflux, influx D) influx, efflux
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Fill in the blank(s) with correct word