Answered

Explore a diverse range of topics and get answers from knowledgeable individuals on IDNLearn.com. Explore thousands of verified answers from experts and find the solutions you need, no matter the topic.

Which event predominantly dictates the depolarization phase of an action potential in neurons?

A. Opening of sodium channels
B. Opening of potassium channels
C. Closing of calcium channels
D. Closing of chloride channels

Sagot :

GinnyAnsweridn

Final answer:

Voltage-gated sodium channels are crucial for the depolarization phase in neuron action potentials.


Explanation:

Voltage-gated sodium channels predominantly dictate the depolarization phase of an action potential in neurons. When the cell's membrane potential reaches threshold, these channels open, allowing sodium ions to rush into the cell, leading to depolarization.

As depolarization spreads and reaches threshold, the action potential moves down the axon in a unidirectional manner. Sodium channels go into a refractory state, ensuring the wave of depolarization travels one way.

The depolarization phase of an action potential is a rapid process where voltage-gated sodium channels play a crucial role in initiating and propagating the action potential along the neuron.


Learn more about Depolarization phase of action potential in neurons here:

https://brainly.com/question/32251012


We appreciate your presence here. Keep sharing knowledge and helping others find the answers they need. This community is the perfect place to learn together. Thank you for trusting IDNLearn.com. We’re dedicated to providing accurate answers, so visit us again for more solutions.