Which of the following is the appropriate threshold value for mammalian neurons?
A. +35 mV
B. -55 mV
C. 0 mV
D. -80 mV
A neuron is a messenger cell that receives and transmits information the central nervous system and peripheral nervous system. The neurons are the ones that conduct electrical signals, and there is a level that causes depolarization to reach a given value to cause an action potential.
This level is called threshold of excitation and in mammalian neurons it occurs when the threshold is around -55 mV to -65 mV.
Therefore, the Correct Answer is B.
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