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Q: Which part(s) of the neuron is capable of generating a graded potential?
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What parts of a neuron is capable of generating a graded potential?

The dendrites portion of a neuron will generate a potential.


Which part of the neuron is capable of generating an action potiental?

axon


When a sensory neuron is excited by some energy the resulting graded potential is called?

Receptor potential or generator potential.


When a sensory neuron is excited by some of energy the resulting graded potential is called?

Receptor potential or generator potential.


What substances plays the major role in generating the membrane potential of a neuron?

sodium


How does an action potential differ from a graded potential?

Action potentials also known as spikes, differ from graded potentials in that they do not diminish in strength as they travel through the neuron.


When a sensory neuron is excited by some form of energy the resulting graded potential is called?

receptor or generator potential


Is a postsynaptic potential a graded potential that is the result if a neurotransmitter released into the synapse between two neurons?

Yes it is true that graded potential can be called postsynaptic potentials. When a sensory neuron is excited by some form of energy, the resulting graded potential is called generator potential.


How would a chemical that prevents the opening of voltage-regulated Na channels affect the function of a neuron?

neuron will only be capable of producing graded potentials


The anatomical region of a multipolar neuron that has the lowest threshold for generating an action potential is?

Axon hillock


What substances plays a mojor role in generating the membrane potential of a neuron?

Well, for starters, membrane potential is a separation of charges across the membrane. So i think what you mean is "generating the action potential in a neuron". So in that case The substance that plays a major role in generating an action potential is Sodium (Na+). However, if you really mean membrane potential, there is only two substances associated with that and those are sodium (Na+) and potassium (K+).However, in truth, the generation of an action potential depends on the ligand and its receptor.


Which membrane potential occurs because of the influx of Na plus through chemically gated channels in the receptive region of a neuron?

An excitatory postsynaptic potential, a type of graded potential, occurs because of the influx of Na+ through chemically gated channels in the receptive region, or postsynaptic membrane, of a neuron. Graded potentials are generated by chemically gated channels, whereas action potentials are produced by voltage-gated channels.