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Inhibition of a stimulatory neuron before it synapses, by inhibiting Ca2+ entry and blocking downstream processes, preventing neurotransmitter release, and therefore preventing the neuron generating and EPSP post-synaptically.
Wiki User
∙ 15y ago
Wiki User
∙ 10y agoPost-synaptic refers to the receiving neuron, called the post-synaptic neuron, since it is afterthe synapse. Inhibitory synaptic refers to a synapse which has an inhibiting influence upon a post-synaptic neuron rather than an exciting influence (that is, it is likely to cause the post-synaptic neuron not to fire, rather than to fire).
Wiki User
∙ 10y agoinhibition of stimulatory neuron, after it has synapsed
Wiki User
∙ 10y agoPresynaptic Inhibition: Decreases neurotransmitters release. Ex. endorphins inhibit pain sensation
Presynaptic Facilitation: Increases neurotransmitters release. Ex. Glutamate
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What is an example of a presynaptic cell?
a neuron
What is the action of dopamine on the postsynaptic membrane?
All neurotransmitters have an effect on the post synaptic membrane of either inhibition or excitation. Dopamine is an Excitatory NT so if a Excitatory Neuron meets with another Excitatory Neuron it creates Excitation. However if it meets with an Inhibitory Neuron Dopamine and the other Excitatory NT's wll only create Inhibition. Only GABA and Glycine are considered Inhhibitory NTransmitters.
Are neurotransmitter expelled from the presynaptic cells?
yes
What happens when a protein is inhibited?
When a enzyme is inhibited (many proteins are enzymes), it just means that the enzyme will be reduced in its ability to catalyze a reaction. There are a few types of Inhibition like Competitive Inhibition, Noncompetitive Inhibition, and Irreversible Inhibition.
How do you calculate percent inhibition?
% inhibition = [(normal activity - inhibited activity) / (normal activity)] * 100%
Presynaptic inhibition is the opposite of?
Facilitation
What is The process by which the neurotransmitter substance leaves the presynaptic terminal button is called?
Leaves the presynaptic neuron, activates ion channel
Increasing the substrate concentration in an enzymatic reaction could overcome what?
competitive inhibition
What is an example of a presynaptic cell?
a neuron
What is the difference between presynaptic and postsynaptic neurons?
Presynaptic neurons release the neurotransmitter in response to an action potential. Postsynaptic neurons receive the neurotransmitter (and can however become presynaptic to the next nerve cell, if the neurotransmitter has stimulated the cell enough).
What is the Inhibition of the bone marrow?
Myelosuppression is inhibition of the bone marrow.
How is competitive inhibition different from competitive inhibition?
Competitive Inhibition is a substance that binds to the active site in place of the substance while Non-competitive Inhibition is a substance that binds to a location remote from the active site. (:
What is the action of dopamine on the postsynaptic membrane?
All neurotransmitters have an effect on the post synaptic membrane of either inhibition or excitation. Dopamine is an Excitatory NT so if a Excitatory Neuron meets with another Excitatory Neuron it creates Excitation. However if it meets with an Inhibitory Neuron Dopamine and the other Excitatory NT's wll only create Inhibition. Only GABA and Glycine are considered Inhhibitory NTransmitters.
Are neurotransmitter expelled from the presynaptic cells?
yes
How is competitive inhibition different from non competitive inhibition?
Competitive Inhibition is a substance that binds to the active site in place of the substance while Non-competitive Inhibition is a substance that binds to a location remote from the active site. (:
How can you determine whether the zone of inhibition is due to death of a bacterium or to inhibition of growth?
How can you determine whether the zone of inhibition is due to death or the effect of the antibiotics?
What happens when a protein is inhibited?
When a enzyme is inhibited (many proteins are enzymes), it just means that the enzyme will be reduced in its ability to catalyze a reaction. There are a few types of Inhibition like Competitive Inhibition, Noncompetitive Inhibition, and Irreversible Inhibition.
