Q: Which part (s) of the brain, when impaired by alcohol, play an important role in memory: •
a. Nucleus accumbens •
b. Hypothalamus •
c. Hippocampus •
d. All of the above.

The correct statement from all the given options is a) hippocampus.

Further Explanation:

Brain is one of the important organs of the body as it controls the vital functions of the body. Factor that affects the brain are stress, diet, sleep, infection, alcohol, drugs etc.

Alcohol can lead to changes in the brain as it can damage the neurons in the central nervous system as it crosses the blood brain barrier. As alcohol reaches the brain it starts killing neurons and affect the system which helps in decision making, regulating emotions etc.

Effect of alcohol on hippocampus

• Hippocampus is that part of the brain which helps in storing of memory. It helps in managing the learning. If the hippocampus is affected it may lead to loss of memory. Alcohol consumption may lead to disruption of hippocampus as it decreases the electrical activity of neurons by binding to specialized proteins which are present in neuronal membrane. The decreased production of impulses in the hippocampus disrupts the formation of the short term memory and long term memory. Damage may vary depending upon the disruption of hippocampus.

• If the cells degenerate in the hippocampus it may lead to Alzheimer’s disease.

 

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