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epsp's & IPSP's

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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 is in the dendrites of the postsynaptic nerve?

Dendrites of a postsynaptic nerve contain receptors for neurotransmitters released by the presynaptic neuron. These receptors detect and respond to the neurotransmitters by initiating an electrical signal that travels towards the cell body. This signal determines whether the neuron will fire an action potential.


Where does neuron charge build up before fired to the axon?

Before a neuron fires, the charge builds up at the axon hillock, the region where the axon meets the cell body (soma). This area integrates incoming signals from dendrites and determines whether the threshold for firing an action potential is met. If the threshold is reached, an action potential is generated, and the electrical signal travels down the axon.


What structure in the neuron accelerates the transmission of the action potential?

The structure in the neuron that accelerates the transmission of the action potential is called the myelin sheath.


When neuron stimulated enough it?

When a neuron is stimulated enough, it reaches its threshold potential and fires an action potential. This action potential travels down the axon of the neuron, allowing for the communication of signals to other neurons or cells.


What happens to the neuron after an action potential is fired?

After an action potential is fired, the neuron goes through a refractory period where it cannot fire another action potential immediately. During this time, the neuron resets its electrical charge and prepares for the next signal.


What happens during an action potential in a neuron?

During an action potential in a neuron, there is a rapid change in electrical charge across the cell membrane. This change allows for the transmission of signals along the neuron.


During an action potential, what happens to the neuron's electrical charge?

During an action potential, the neuron's electrical charge rapidly changes from negative to positive, allowing for the transmission of signals along the neuron.


When an action potential reaches the end of a neuron it triggers the release of?

neurotransmitters from the synaptic vesicles into the synapse. These neurotransmitters then bind to receptor proteins on the adjacent neuron, initiating a new action potential in the postsynaptic neuron.


The fundamental cell type that conducts an action potential in the nervous system is a?

neuron


What determines whether the response of a receiving neuron is excitatory or inhibitory?

The type of neurotransmitter.


The start of an action potential?

The action potential begins when the neuron is stimulated and reaches a certain threshold of excitation. This causes voltage-gated ion channels to open, allowing a rapid influx of sodium ions into the neuron, leading to depolarization. This depolarization triggers a cascading effect along the neuron's membrane, resulting in the propagation of the action potential.