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What effect does depolarization have on the motor end plate once action potentials arrive at the synaptic end bulb?
Depolarization at the motor end plate upon arrival of action potentials triggers the release of neurotransmitter acetylcholine into the synaptic cleft. This acetylcholine then binds to receptors on the muscle cell membrane, initiating muscle contraction by depolarizing the muscle cell membrane and allowing the action potential to propagate along the muscle fiber.
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What is an event when one or more presynaptic neurons fire in rapid order it produces a much greater depolarization of the postsynaptic membrane than would result from a single ESPS?
This is known as temporal summation, where multiple action potentials from presynaptic neurons arrive in quick succession at a synapse, leading to an accumulation of excitatory postsynaptic potentials (EPSPs) that can reach the threshold for generating an action potential in the postsynaptic neuron. This process enhances synaptic transmission and the strength of the signal being transmitted.
Numerous nerve impulses arriving at a synapse at the same time exert a cumulative effect?
Kind of. Each neurone can have thousands of inputs from other neurones arriving at the same time. It all depends on the types of signal arriving from the other neurones. There are 2 types of incoming signal; 1. Excitatory Post-synaptic potentials (EPSPs) - These inputs depolarise the neurone (bring the negative voltage of the neurone closer to 0mV). 2.Inhibitory Post-synaptic potentials (IPSPs) - These inputs hyperpolarise the cell (make the neurone voltage more negative). Some of the inputs coming to the neurone will be EPSPs, some IPSPs. If all the inputs come in and there are more EPSPs then the neurone will depolarise. If the neurone depolarises to the firing threshold (around -40mV) then an action potential will be propagated and the neurone will transmit the message to the next neurone in the chain. If the majority of the inputs are IPSPs then the neurone will hyperpolarise and will not fire. If there are more EPSPs than IPSPs but the neurone still doesn't depolarise enough to reach the firing threshold then the neurone will not fire.
Neuron receives a series of stimuli whose effect is excitatory but subthreshold?
Then it does nothing unless the stimuli arrive at the same time to be above the threshold. Or the stimuli may undergo temporal summation (with buildup of neurotransmitters in the synapse), where their effects add up over time to be above the threshold.
When the second excitory postsynaptic potential arrives at a single synapse before the effect of the first has disappeared what occurs?
Summation occurs, where the two excitatory postsynaptic potentials combine to reach the threshold for firing an action potential. This can be either temporal summation, where two EPSPs from the same presynaptic neuron occur in quick succession, or spatial summation, where EPSPs from different presynaptic neurons arrive simultaneously.
What is a good time to arrive at the studio to watch the Today Show in person if visiting New York?
To be a part of the Today Show audience, it's best to arrive early in the morning, around 6:00-6:30 am when the studio typically starts letting in audience members. Keep in mind that the earlier you arrive, the better your chances are of getting a good spot close to the action.
What is an event when one or more presynaptic neurons fire in rapid order it produces a much greater depolarization of the postsynaptic membrane than would result from a single ESPS?
This is known as temporal summation, where multiple action potentials from presynaptic neurons arrive in quick succession at a synapse, leading to an accumulation of excitatory postsynaptic potentials (EPSPs) that can reach the threshold for generating an action potential in the postsynaptic neuron. This process enhances synaptic transmission and the strength of the signal being transmitted.
Is arrive a preposition?
No, "arrive" is a verb. The plane will arrive tomorrow morning at 5:45.
What EPSPs will summate to a sustained value above threshold?
Temporal summation occurs when EPSPs arrive at the postsynaptic neuron in quick succession, allowing for the buildup of membrane potential to reach threshold. This sustained value above threshold is reached when multiple EPSPs are received close together in time, allowing for their individual effects to summate and trigger an action potential.
As soon as you arrive what sentence structure is this?
"As soon as" is a conjunction that shows something that happens immediately (that is, at the moment another action is completed; in this case, as soon as you arrive, _____ will take place).
To arrive at an economic decision a decision making grid may be used to evaluate?
Alternative choices of action.
What is the function of programs?
# It is used to solve problems. # The program directs the computer to perform the action that are needed to arrive at a solution.
Which is correct just arrive or just arrived from school?
as in "I just arrived from school" or " Why do you always just arrive whenever shcool is done?"
Numerous nerve impulses arriving at a synapse at the same time exert a cumulative effect?
Kind of. Each neurone can have thousands of inputs from other neurones arriving at the same time. It all depends on the types of signal arriving from the other neurones. There are 2 types of incoming signal; 1. Excitatory Post-synaptic potentials (EPSPs) - These inputs depolarise the neurone (bring the negative voltage of the neurone closer to 0mV). 2.Inhibitory Post-synaptic potentials (IPSPs) - These inputs hyperpolarise the cell (make the neurone voltage more negative). Some of the inputs coming to the neurone will be EPSPs, some IPSPs. If all the inputs come in and there are more EPSPs then the neurone will depolarise. If the neurone depolarises to the firing threshold (around -40mV) then an action potential will be propagated and the neurone will transmit the message to the next neurone in the chain. If the majority of the inputs are IPSPs then the neurone will hyperpolarise and will not fire. If there are more EPSPs than IPSPs but the neurone still doesn't depolarise enough to reach the firing threshold then the neurone will not fire.
Arrive at London or arrive London?
Arrive at or arrive in London.
Neuron receives a series of stimuli whose effect is excitatory but subthreshold?
Then it does nothing unless the stimuli arrive at the same time to be above the threshold. Or the stimuli may undergo temporal summation (with buildup of neurotransmitters in the synapse), where their effects add up over time to be above the threshold.
Which is correct 'arrive to' or 'arrive at'?
Arrive at
Do you say Arrive at or arrive to?
You say "arrive at" when referring to a destination or specific location. For example, "We arrived at the airport." "Arrive to" is not the correct preposition to use with "arrive."
