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What determines whether a neuron will have an action potential triggered?
Wiki User
∙ 13y ago
The effect upon the target neuron is determined not by the source neuron or by the neurotransmitter, but by the type of receptor that is activated. A neurotransmitter can be thought of as a key, and a receptor as a lock: the same type of key can here be used to open many different types of locks. Receptors can be classified broadly as excitatory(causing an increase in firing rate),inhibitory(causing a decrease in firing rate), or modulatory(causing long-lasting effects not directly related to firing rate).
Wiki User
∙ 12y ago
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What determines whether a neuron has an action potential?
epsp's & IPSP's
An action potential is triggered if?
If a neuron, or other excitable tissue, is stimulated by a stimulus of threshold strength or greater strength..
What determines if an action potential is initiated in the postsynaptic neuron?
Every time neurotransmitter is released from the presynaptic neuron it generates an excitatory post synaptic potential(EPSP) in the postsynaptic neuron. When the EPSP is greater than the threshold for excitation an action potential is generated.
What happens to the size of an action potential as it continues down the axon?
I belive the size of the axon potential remains constant at a depolarisation of +40 mv and a resting potential of -70mv for most nerves. The frenquency of action potentials is the factor that determines the strength of the nerve impulse.
Which of the following characteristics determines when the refractory period ends?
"how long it takes for the voltage-gated Na+ channels to reactivate at the end of an action potential"
Is triggered a verb?
yes, a verb is an action word and your able to do it ex.sally triggered the alarm
How does graded potential occur?
Graded potential occurs when triggered by a stimulus and gated ion channels open these gated channels can either be chemically gated or mechanically gated. In order to have graded potential threshold must be met in order to generate action potential. Good day!
What was the effect of curare on eliciting an action potential?
It creates an action potential
A neuron reaches its trigger point when?
Action potential is nerve impulse triggered when a neuron reaches its threshold, or trigger point for firing. Threshold trigger point for a neuron's firing about negative 50 millivolts.
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.
A Russian action that almost triggered another European conflict was?
Communist propaganda almost triggered another European conflict.
The action potential is generated when a stimulus?
When a stimulus stimulates a neuron above the threshold, the action potential is generated.
