The questions seeks to test the students knowledge about bio-electrical impulses. See the correct arrangement of items according to the position on the curve where each event would occur.
What is the right arrangement from the information given?
Section A:
1. Sodium ions depolarize the membrane at the axon hillock when they arrive there.
2. The membrane's potential is becoming less negative.
Section B:
1. Voltage-gated Na+ channels open quickly at threshold.
2. Threshold
3. -55 mV, , and
4. The inflow of sodium is higher than at resting membrane potential or at any other time.
Section C
1. Potassium voltage-gated channels open
Section D:
1: Hyperpolarization
Section E:
1. Resting membrane potential
2. -70 mV
What are bioelectrical impulses?
Bioelectrical signals, which can be measured from biological beings like humans, have very low amplitudes and low frequencies.
The complex self-regulatory system produces bioelectrical signals, which can be detected by observing changes in electrical potential within a cell or organ.
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