A scientist stimulates an axon two times within fifteen milliseconds. When measuring voltage changes on the other end of the axon, they only see one action potential. Why does this happen?
1. The membrane does not have enough time to return to its resting potential, and so no action potential can be initiated.
2. Na+/K+ pumps are actively pumping Na+ out of the axon, which prevents the axon from reaching threshold.
3. Voltage-gated K+ channels are opposing the flow of current from the electrode, preventing the axon from reaching threshold.
Answers
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0
Answer:
Option B is correct as per my knowledge
Explanation:
During the nerve impulse when stimulus of nerve strength is applied to a polarised membrane, the permeability of the membrane to Na+ is increased at the point of stimulation. As a result the Na+ channel permit the influx of Na+ by diffusion into intracellular fluid from extracellular fluid.
Answered by
1
Answer:
just know no 2 is incorrect
Explanation:
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