Depolarizing the membrane during an action potential first involves the flow of ___________ ions into the membrane.

1 answer:

6 0

Depolarizing the membrane during an action potential first involves the flow of sodium (Na) ions into the membrane.

An action potential is a rise and subsequent fall in voltage or membrane potential across a cellular membrane. At the resting potential (high concentration of Na+ outside the cell and low of the K+, different inside the cell), K channels are closed. When Na channels open (by stimulus), the membrane depolarizes. When depolarization reaches the threshold potential, it triggers an action potential. Generation of the action potential brings the closing of Na channels. When Na channels close and K channels open, the membrane repolarizes.

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Given what we know, the three sentences in this question all describe the properties of oceanic crust.

<h3>What is the oceanic crust?</h3>

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To learn more about oceanic crust visit:

brainly.com/question/4617658?referrer=searchResults

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