Multiple Choice Question: The neuron generates action potenitals. The number of
ID: 66288 • Letter: M
Question
Multiple Choice Question:
The neuron generates action potenitals. The number of action potentials___________________
A) is fixed based on the function of the neurons. Hence, memory cells fire more cells than do neurons that control heart rate.
B) depends on the stimulus to the neuron. The greater the stimulus, the greater the number of action potentials.
C) depends on the stimulus to the neuron. The greater the stimulus, the less the number of action potentials.
D) is always the same. SOme neurons fire many action potentials and others do not.
Explanation / Answer
B) depends on the stimulus to the neuron. The greater the stimulus, the greater the number of action potentials.
Any stimulus is a form of energy, so when some energy applied in the form of stimuli, this causes change in membrane potentials of neurons innervating that region, and causes depolarisation, which results in impulse generation and transmission.
Depend upon the severity of stimuli, the duration of impulse varies, which again depends on the number of action potentials produced. The greater the stimulus, the greater the number of action potentials.
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