What is a dopaminergic system?

Dopaminergic brain system is a number of ways that slight control over some behavior and voluntary movement. It depends on the neurotransmitter dopamine, which is produced in the midbrain. The dopaminergic system activates the feelings of rewards during various, usually pleasant activities and its disorder is associated with drug and alcohol addiction according to this particular reaction. Symptoms of Parkinson's disease arise from the destruction of neurons producing dopamine, which are partially treated with dopamine administration to patients to restore normal system function.

The dopaminergic system comes from the midbrain, where dopamine is produced in the nigra nigra neurons from the molecule called L-Dopa for Lev-Dopa. From there, the axons of these nerves of the synapse in places over the brain. One set of axons affects knowledge in frontal lobes, in particular judgment and similar control mechanisms such as deciding whether and ACT in a certain way. Another branch of nerves reaches the limbic system of temporal lobe where dopamine modulates the creation of a launchYKu by increasing nerve correlation between pleasure and given behavior.

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brain reward system includes neural groups in midbrain and cerebral cortex, especially in the mesolimbic system. When there are pleasant experiences such as food, drinks, sex and reception of various medicines, dopamine is released. This causes a sense of reward, high, which then leads to a psychological strengthening of initial pleasant behavior and gradually increases the amount of behavior or substance needed to create a sense of reward. For this reason, many scientists think that altered or excessive dopamine pathways may be the final cause of addictive behavior.

The important role of the dopaminergic system is to control the voluntar movement, the process moderated by the release of dopamine. Parkinson's disease is caused by degeneration of nerve cells producing dopamines in the brain stem and midbrain, especially important areas of nigra and locus ceruleus. TODyž is the dopaminergic system disrupted by depletion of dopamine supplies and cells no longer produce multiple neurotransmitter, motor control areas such as the brain, cease to function normally. This results in jerky movements and impaired walking and grip.

Dopamine is injected intravenously to increase the activity of the sympathetic nervous system, stimulates higher blood pressure and general awareness. Motion disorders caused by Parkinson's disease is the main pharmacological intervention in the function of the dopaminergic system. Since dopamine cannot exceed blood-brainness and thus achieve the areas affected by Parkinson's disease, the predecessor L-Dopa is instead injected in patients. It can be crossed into the brain and be metabolised there into its active form by a number of chemical reactions.