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Neurotransmitters - Anatomy & Physiology (view source)

Revision as of 10:47, 24 August 2011

880 bytes removed ,  10:47, 24 August 2011
→‎Degradation and elimination
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As mentioned above, substances related to changes in ion channel status are closely related to the release of other neuropeptides. '''Zinc''' is therefore associated with the release of another type of neurotransmitter, neuropeptide Y.
 
As mentioned above, substances related to changes in ion channel status are closely related to the release of other neuropeptides. '''Zinc''' is therefore associated with the release of another type of neurotransmitter, neuropeptide Y.
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== Degradation and elimination==
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*Acetylcholine is derived from Choline.
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*Serotonin [5-Hydroxytryptamine (5-HT)] is derived from  Tryptophan.
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*GABA is derived from Glutamate.
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*Histamine is derived from Histidine.
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*Epinephrine, norepinephrine and dopamine are derived from Tyrosine.
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*Adenosine is derived from ATP.
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*Nitric oxide is derived from Arginine.
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Neurotransmitters must be broken down once they reach the post-synaptic cell to end the excitatory or inhibitory signal and prevent over stimulation/perminent inhibition.
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*e.g, '''ACH''' an excitatory neurotransmitter, is broken down by '''acetylcholinesterase''' (AchE).
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*Choline is taken up and recycled by the pre-synaptic neuron to synthesize more ACH.
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*Other neurotransmitters such as dopamine are able to diffuse away and are eliminated from the body via the kidneys, or destroyed in the liver.
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{{unfinished}}
   
[[Category:To Do - A&P]]
 
[[Category:To Do - A&P]]
 
[[Category:Nervous System - Anatomy & Physiology]]
 
[[Category:Nervous System - Anatomy & Physiology]]
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