A single glutamatergic neuron (EPSP) becomes activated and sends glutamate to a post- synaptic neuron. That post-synaptic neuron, however, does not generate an action potential. Give a reason why an action potential is not generated in the postsynaptic neuron.

Q: Describe the 6 step sequence of events that occurs at the NMJ in response to a nerve Action…

A: Steps:- The sarcolemma initiates the action potential. 2)The axon terminal receives the action…

Q: In the central nervous system there may be many synaptic inputs on a postsynaptic neurons.  How does…

A: A single axon will have multiple branches, permitting it to create synapses on varied postsynaptic…

Q: A neuron receiving a large enough signal, a resting potential changes and produces electrical…

A: Introduction  Nerves play vital role in conduction of signals from CNS to various other organs,…

Q: If excitotoxicity is leading to neuronal death in various neurodegenerative diseases such as…

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Q: Unmyelinated axons conduct action potentials without decrement, but when myelinated axons lose…

A: The nervous system is one of the vital systems of a body. It is a system of nerves which carry…

Q: Contrast excitatory and inhibitory synapses.

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Q: The neurotransmitter secreted at an adrenergic synapse is _____________.

A: Neurotransmitters are the biochemical messengers secreted from nerve cells used to transmit a…

Q: Spastic paralysis (resulting from the failure of muscles to relax), induced by the neurotoxin…

A: Neurotransmitters are referred to as the body's chemical messengers. They are the molecules used by…

Q: Neurotransmitters are released from a neuron when the action potential reaches the end of its axon.

A:

Q: Classify the following neurotransmitters as excitatory or inhibitory: Acetylcholine Serotonin…

A: Neurotransmitters are secondary chemicals used by the neurons use to communicate with one another…

Q: The Structure of the acetylcholine receptor is shown below:   D. Briefly indicate what the role of…

A: Acetylcholine is a neurotransmitter at various synapses, nerves, and at the motor endplate of…

Q: What is a typical value for an inhibitory post synaptic potential?  Why is it inhibitory?

A: An inhibitory post synaptic potential is a kind of synaptic potential that makes a postsynaptic…

Q: A neurotoxin was delivered to a patient that prevented sodium channels from opening at the axon…

A: Action potential is just rise and fall of membrane potential which generates signals to various…

Q: Toxins from the cone snail block glutamate receptors in the postsynaptic membrane. What specifically…

A: In the nervous system, neurons communicate with each other by releasing chemical messengers in a…

Q: Drugs that block dopamine synapses tend to impair or slow limb movements. However, after people have…

A: Dopamine is a chemical that carries messages in the brain. They are involved in many functions of…

Q: Neurons, particularly those in the brain, receive multiple excitatory and inhibitory signals. What…

A: Neurons are the basic functional unit. It is a specialized cell that is designed to transfer…

Q: At a given synapse, the _____ neuron has neurotransmitter receptors.

A: Neurotransmitter receptors:                       The receptors present in the plasma membrane of…

Q: You are a neuroscientist and have been provided a sample of a new snake venom. You test its effect…

A: Introduction A neurotransmitter is a chemical messenger that transports, enhances, and balances…

Q: The postsynaptic potential produced in a neuron will be excitatory or inhibitory depending on the…

A: First let us understand the term Postsynaptic Potential. When a nerve impulse is transmitted…

Q: An action potential has reached the axon terminal of a presynaptic cell. As a result of the action…

A: An action potential can be defined as a short-term change that can be observed in electrical…

Q: Describe the series of event that occurs as an electrical signal in the presynaptic neuron is…

A: The nervous system is highly complex among different organ systems in animals. By transmitting…

Q: If the neurotransmitter released by the presynaptic axon is dopamine and the diffusion distance…

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Q: In a nerve at rest, the low potassium ion concentration inside the axon is responsible for a…

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Q: Action potentials at a chemical synapse travel from presynaptic terminal to postsynaptic membrane.…

A: Chemical synapses are connections between two neurons. There is a 0.02 μ gap between the presynaptic…

Q: Inhibitory postsynaptic potentials cause what type of change at the post-synaptic membrane?…

A: Introduction:  Post-synaptic potentials are neurotransmitter receptors that mediate changes in…

Q: After an action potential, the neuron

A: When the membrane potential of a given cell location rapidly rises and falls, an action potential…

Q: Two excitatory synapses on a neuron fire at the same time as one inhibitory neuron. Each synapse…

A: Synapse is also known as neuronal junction and it allows a neuron to pass an electrical or chemical…

Q: True or False: Neurotransmitters have different shapes.

A:

Q: Şubthreshold potentials can produce action potentials through it can't occur spatial summation…

A: An action potential is produced in a neuron through stimulation. This produces a nerve impulse that…

Q: Rlvastigmine is a cholinesterase inhibitor medication that alleviates symptoms in Alzheimer's and…

A: Here, 1) Pre synaptic neuron 2) Synaptic vesicle 3) Choline esterase

Q: A laboratory experiment is set up where you have two fully functional nerves properly aligned so…

A: When there is a rapid rise and then fall in the membrane potential or voltage across the membrane of…

Q: which one of the following statements is incorrect? a. temporal summation occurs when a single…

A: A neuron is a basic unit that serves as a medium for the transmission of a signal (nerve impulse)…

Q: If a postsynaptic cell has synapses from five different cells, and three cause EPSPs and two of them…

A: Postsynaptic potentials are membrane potential changes of a chemical synapse’s postsynaptic…

Q: Certain types of neurotoxins prevent depolarization of the axon. What specific type of channel is…

A: The depolarization and repolarization of membrane potential is known as an action potential or nerve…

Q: the postsynaptic mechanism of excitatory and inhibtory synapses

A: The postsynaptic conductance changes and the potential changes are that which accompany them alter…

Q: Opening of ligand-gated Cl- channels causes :-a- inhibition of the postsynaptic neuronb-…

A: Ligand gated ion channels open in response to specific ligand molecules binding to the extracellular…

Q: Select all criterion for classifying a substance as a neurotransmitter. (select all that apply)…

A: Neurotransmitters are chemical messengers that are employed by the body to transmit nerve impulses…

Q: Flaccid paralysis (resulting from the failure of muscles to contract), induced by the neurotoxin…

A: Neurotransmitters are the chemical molecules that help in the transmission of information from one…

Q: If a neurotransmitter increases the likelihood that the postsynaptic cell will send an action…

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Q: Presynaptic inhibition is characterized by all the following, except :-a- increased Cl- influx into…

A: Presynaptic neuron sends message from its axon terminals and post synaptic neuron receive this…

Q: List the synapses in which ACh is the neurotransmitter.

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Q: An excitatory adrenergic synapse is associated with_____ acetylcholine norepinephrine GABA dopamine…

A: An excitatory adrenergic synapse is associated with norepinephrine

Q: When an inhibitory neurotransmitter such as GABA opens cl– channels in the plasma membrane of a…

A: Introduction :- Inhibitory neurotransmitters hinder the chemical communication from being…

Q: A neurotransmitter can have one of two effects on the postsynaptic neuron. If a neurotransmitter…

A: The nervous system is composed of neurons and neuroglia cells. Neuron is the major part of our…

Q: The influx of calcium into the axon terminal of a chemical synapse is responsible for

A: Biology is the broad branch that deals with the study of life and living organisms. This includes…

Q: Explain why the postsynaptic part of the synapse is furnished with myriad amount and diverse kinds…

A: Synapse is the gap between the neurons that help in the signal transmission between the neurons. The…