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What Is Probably the Signal That Causes the Firing of Action

Question 25

Multiple Choice

What is probably the signal that causes the firing of action potentials from the trigeminal nerve when a whisker is deflected?


A) Neurotransmitter binding to its GPCR
B) Hormone binding to its GPCR
C) Mechanically gated ion channel
D) Cyclic nucleotide (cAMP) -activated ion channel
E) Mechanical stretch of the skin, resulting in pulling on the whisker shaft

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