What are the effects of alcohol on the nervous system?

Answer 1

Alcohol affects the nervous system by slowing your reaction time down; like your nerves and brain cells won't get messages as fast as you would like them too. Also it could make your breathing slow if not stop it.

Answer 2

As mentioned above, alcohol is a central nervous system depressant. It acts at many sites, including the reticular formation, spinal cord, cerebellum and cerebral cortex, and on many neurotransmitter systems. Alcohol is a very small molecule and is soluble in "lipid" and water solutions. Because of these properties, alcohol gets into the bloodstream very easily and also crosses the blood brain barrier. Some of the neurochemical effects of alcohol are: Increased turnover of norepinephrine and dopamine Decreased transmission in acetylcholine systems Increased transmission in GABA systems Increased production of beta-endorphin in the hypothalamus Chronic drinking can lead to dependence and addiction to alcohol and to additional neurological problems. Typical symptoms of withholding alcohol from someone who is addicted to it are shaking (tremors), sleep problems and nausea. More severe withdrawal symptoms include hallucinations and even seizures. Chronic alcohol use can: Damage the frontal lobes of the brain Cause an overall reduction in brain size and increase in the size of the ventricles Lead to Alcoholism (addiction to alcohol) and result in tolerance to the effects of alcohol and variety of health problems Cause a vitamin deficiency. Because the digestion system of alcoholics is unable to absorb vitamin B-1 (thiamine), a syndrome known as "Wernicke's Encephalopathy" may develop. This syndrome is characterized by impaired memory, confusion and lack of coordination. Further deficiencies of thiamine can lead to "Korsakoff's Syndrome." This disorder is characterized by amnesia, apathy and disorientation. Widespread disease of the brain is a feature of both Wernicke's and Korsakoff's Syndromes.

Answer 3

Studies point to alcohol impairment of NMDA receptors and the enhancement of of inhibitory GABAa receptors primarily in the pre-frontal cortex and cellebellar nuclei. Since alcohol easily passes through the cell membrane ( lipid soluble) it is likely to have actions that are not mediated by membrane bound receptors.

Answer 4

Alcohol: While you drink alcohol your blood stream absorbs the alcohol and the nervous system functions slow down dramatically, this is a 'buzz' or numbness people often have after drinking.

Answer 5

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Answer 6

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