ramsteacher
Answered

Westonci.ca is the Q&A platform that connects you with experts who provide accurate and detailed answers. Experience the convenience of finding accurate answers to your questions from knowledgeable experts on our platform. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently.

What keeps an action potential continuing down an axon?

A. At each successive node of the axon, the action potential is regenerated by depolarization and the movement of ions across the axon's membrane.
B. Neurotransmitters are constantly being released to generate the action potential at each successive node of the axon.
C. Action potentials are conducted down the axon just as electricity is conducted through a wire.
D. Ion channels open and close at the nodes of Ranvier, allowing neurotransmitters to enter the axon and regenerate an action potential at each node.

Sagot :

GinnyAnswer

Final answer:

The continuity of sodium-potassium channels, saltatory conduction in myelinated axons, and the role of ion channels in depolarization are crucial in maintaining and propagating an action potential down an axon.


Explanation:

A continuous series of opening and closing of sodium-potassium channels and pumps - The propagation of an electrical impulse (action potential) down an axon consists of a continuous series of opening and closing of sodium-potassium channels and pumps. The action potential moves like a wave from one end (dendritic end) to the terminal end of the axon.

Saltatory conduction - In myelinated axons, the action potential jumps from one Node of Ranvier to the next, leading to faster propagation speeds. Nodes of Ranvier allow the action potential to be regenerated along the axon.

Ion channels and depolarization - The movement of ions across the axon's membrane, along with depolarization and repolarization, are essential for sustaining the action potential and ensuring its propagation down the axon.


Learn more about Action potential propagation here:

https://brainly.com/question/36277282


We hope you found what you were looking for. Feel free to revisit us for more answers and updated information. Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. We're glad you visited Westonci.ca. Return anytime for updated answers from our knowledgeable team.