As sodium ions diffuse inward, sodium channels open.
Membrane depolarization occurs.
Potassium ions spread outward as potassium channels open.
Membrane repolarization occurs.
<h3>What happens along an axon in the right order ?</h3><h3 />
An action potential, which is a fast change in membrane potential, develops when the membrane potential of a neuron's axon hillock hits threshold. There are three steps to this shifting change in membrane potential. Depolarization occurs first, then repolarization, and then there is a brief phase of hyperpolarization.
- A depolarizing current causes an explosion of electrical activity known as the action potential. This indicates that the resting potential shifts toward 0 mV as a result of some action (a stimulus).
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Answer:
If we are watching the sky, we see the lightning before we hear the thunder. That is because light travels much faster than sound waves. We can estimate the distance of the lightning by counting how many seconds it takes until we hear the thunder. It takes approximately 5 seconds for the sound to travel 1 mile.
Explanation:
Measuring blood sugar levels provides information about how well the body manages carbohydrate metabolism. the procedure called ppbs examines blood sugar levels are measured about 2 hours after a meal.
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Energy can neither be created nor destroyed
As the fetus develops inside a woman's uterus, another vital structure is in place to provide a vital service to mother and child: the placenta. It is a spongy structure, filled with blood vessels that come from the mother by way of the lining of the uterus, and then connects with the baby by the umbilical cord