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Explain in detail the physiological functions and mechanisms of action of a neurotransmitter (Dopamine) and explain how...

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Medical Sciences

Explain in detail the physiological functions and mechanisms ofaction of a neurotransmitter (Dopamine) andexplain how drugs can alter their function.

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Physiological function of dopamine Dopamine is a neurotransmitter released by the brain that place a number of rules in human and other animals Sum of its notable functions are are in Movement Part of brain called basal ganglia regulate movement Basal ganglia intern depend on a certain amount of dopamine to function at peak efficiency The action of dopamine occurs via dopamine receptor d15 dopamine reduces the influence of indirect pathway and increases the action of the direct pathway within the basal ganglia When there is a deficiency in dopamine in the brain movement Mein become delayed uncoordinated On the flip side if there is an excess of dopamine in the brain causes the body to make unnecessary movements such as repetitive tics Pleasure reward seeking behaviour Doberman is the chemical that mediate pleasure in the brain It is released during pleasurable situations and stimulates one to seek out the pleasurable activity or occupation This means food sex and several drugs of abuse or also stimulants of dopamine release in the brain particularly in areas such as nucleus accumbens and prefrontal cortex Addiction Cocaine and amphetamine inhibit the uptake of dopamine Cocain is dopamineTransporter blocker that competitively inhibit dopamine uptake to increase the presence of dopamine Amphetamine increases the concentration of Dopamine in the synoptic grab but by a different    See Answer
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