How does drug affects central nervous system – rapid screen test
Drugs are directly related with nervous system. Brain is the central coordinator in a human system. Its activity is maintained by the several nerves which are termed as chemical neurotransmitter. This neurotransmitter is released from the brain up on activation or by receiving stimuli. They include noradrenalin, dopamine, gamma amino butyric acid, glutamate, serotonin, acetylcholine and other synapses linked to the neurotransmitters.
Neuron transmitters are responsible for the exchange of reaction and stimuli in the body. This is a kind of machinery process where it is coordinated n chain manner. If a neurotransmitter gets repaired in a place the whole process will go collapsed. Exogenous chemicals are exchanged with the neurotransmitter. It is the point where external drugs are introduced in to the brain system. Drugs can be classified in to stimulants, sedatives, tranquilizers, steroids, etc.
Widely used stimulants are caffeine, amphetamines, and cocaine. These drugs will mimic the brain function and turn out in to its action. Every drug will bind to the receptors found in the brain. Nicotine will bind to the ach receptor, amphetamine and cocaine will bind to the dopamine and blocks its action. Nicotine will develop craving for it in the absence of drug and when the receptors go unfilled. High levels of dopamine will increase the pleasurable feelings and makes the user to be in pleasurable mood.
Though every drug has its own medical value it is unsafe when addicted more. Medical use will help people to lose weight, treating certain disorders like ADHD. Drugs and nervous system are interrelated. Treatment should be effective that it should replace the original function of the brain. Amphetamine drug testing, oral screen for drugs, blood test for nicotine, rapid screen test, narcotic drug test are performed to check for drug level in an individual.
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