Respuesta :
The action potential traveling down the T tubule causes the sarcoplasmic reticulum to release calcium ions into the fluids surrounding the myofibrils.
What is action potential?
The fundamental unit of the neurological system is the neuron (also known as a nerve cell). An electrical impulse known as an action potential plays a role in how neurons transport messages throughout the body.
This procedure, which takes place when neurons fire, enables a nerve cell to send an electrical signal down the neuron's axon (the part of the cell that transports nerve impulses out from the cell body) in the direction of other cells. This signals the muscles to contract in response.
Steps in action potential:
- Depolarization,
- repolarization,
- hyperpolarization
Cells that signal via action potentials are neurons and muscle cells
- The sudden shift in voltage or action potential is initiated by stimulus.
- In the patch-clamp mode, the cell must receive enough current to elevate the voltage over the threshold voltage required to initiate membrane depolarization.
- A sudden increase in membrane potential that opens sodium channels in the cellular membrane and causes a significant inflow of sodium ions causes depolarization.
- Rapid sodium channel inactivation and a significant potassium ion outflow brought on by active potassium channels cause membrane repolarization.
- A lower membrane potential known as hyperpolarization is brought on by the efflux of potassium ions and closure of the potassium channels.
- When the membrane potential reaches the resting voltage that existed before to the shock, the body is said to be in a resting condition.
Hence, The action potential traveling down the T tubule causes the sarcoplasmic reticulum to release calcium ions into the fluids surrounding the myofibrils.
To learn more about action potential click on the link
https://brainly.com/question/13606928
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