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A temporary accumulation of sodium ions at the axon hillock which yields a voltage sufficient to open voltage-gated ion pores on the axon is what triggers an action potential.
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When an action potential reaches the end of a neuron it triggers the release of?
When an action potential reaches the end of a neuron, it triggers the release of neuotransmitters such as epinephrine (sympathetic) or achetylcholine (parasympathetic).
What change in membrane potential triggers an action potential?
An ion channel.
When the neuron is sussiciently stimulated this process and triggers the action potential?
depolarization
When the neuron is sufficiently stimulated this process occurs and triggers the action potential?
depolarization
Is calcium a neurotransmitter?
No, calcium itself is not a neurotransmitter BUT it is highly important in the process of the action potential. The action potential triggers the influx of calcium at the end of the terminal bouton, causing the influx of Ca2+ into the cell and this triggers for the release of the neurotransmitter. :)
What change in membrane potential triggers action potential?
depolarization
When an action potential reaches the end of a neuron it triggers the release of?
When an action potential reaches the end of a neuron, it triggers the release of neuotransmitters such as epinephrine (sympathetic) or achetylcholine (parasympathetic).
What change in membrane potential depolarization or hyperpolarization triggers an action potential?
despolarization
What change in membrane potential triggers an action potential?
An ion channel.
When the neuron is sussiciently stimulated this process and triggers the action potential?
depolarization
When the neuron is sufficiently stimulated this process occurs and triggers the action potential?
depolarization
Is calcium a neurotransmitter?
No, calcium itself is not a neurotransmitter BUT it is highly important in the process of the action potential. The action potential triggers the influx of calcium at the end of the terminal bouton, causing the influx of Ca2+ into the cell and this triggers for the release of the neurotransmitter. :)
What event most directly triggers the release of calcium from the terminal cisternae?
action potential propagating down the T tubule
Why does a dead frogs leg move when electricity is passed through them?
The electrical current triggers an action potential at the neuromuscular junction, causing the muscle cells to depolarize and contract.
What was the effect of curare on eliciting an action potential?
It creates an action potential
What action does insulin trigger the liver to perform?
it triggers horrnyness
An electrical impulse moving down an axon is called?
This is called action potential. Action potential is the change in electrical potential that occurs between the inside and outside of a nerve or muscle fiber when it is stimulated, serving to transmit nerve signals.
