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What dertemines a neurotransmitter will have an inhibitory or excitatory effect?
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What determines whether a neurotransmitter will have an inhibitory excitatory effect?
How a neurotransmitter interacts with the receptors determines its effects. They activate receptors to perform specific functions in the body.the type of receptor
Muscarinic receptors are inhibitory and excitatory?
Depending on the effector organ it can be inhibitory or excitatory. The muscarinic receptors are activated from the parasympathetic nervous system. So the effect of muscarinic receptors activated on the heart, it will slow the heart down. However, on the gastrointestinal tract, it will increase motility.
If drug A antagonizes an inhibitory neurotransmitter in the Central Nervous System of a patient the most likely effect would be what?
Jittery - your taking away the inhibitory element with the antagonist.
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.
Why would a lack of neurotransmitter cause problem in the nervous system?
neurotransmitters are how signals move from neuron to neuron
What determines whether a neuron will have an action potential triggered?
The effect upon the target neuron is determined not by the source neuron or by the neurotransmitter, but by the type of receptor that is activated. A neurotransmitter can be thought of as a key, and a receptor as a lock: the same type of key can here be used to open many different types of locks. Receptors can be classified broadly as excitatory(causing an increase in firing rate),inhibitory(causing a decrease in firing rate), or modulatory(causing long-lasting effects not directly related to firing rate).
What is inhibitory effect?
An inhibitory effect would curtail the intentions of the person planning an action.
Inhibitory gene effect?
The inhibitory effect of glucose on phosphoenolpyruvate carboxykinase gene expression in cultured hepatocytes is transcriptional. It requires glucose metabolism.
Do all excitatory neurotransmitters have the same effect on organs?
no
What are the inhibitory transmitter in basal ganglia?
The inhibitory neurotransmitter in basal ganglia is GABA, gamma-Aminobutyric acid.Gaba has this inhibitory effect upon binding to receptors at the post-synaptic neuron by opening ion channels there which either allow negatively charged chloride ions into the neuron, or positively charged potassium ions out ofthe neuron.This results in a more negative membrane voltage, which tends to interfere with the action of other excitory inputs.
How does whiskey sour affects the nervous system?
Alcohol binds to the major inhibitory neurotransmitter in the nervous system, called GABA (gamma-amino-butyric acid). This produces a relaxant effect, but also a disinhibitory effect - which can cause poor impulse control when alcohol is used in excess.
What was the first drug to have an effect on a neurotransmitter?
Opium.
