What is Alzheimer's Disease primarily characterized by?

What is Alzheimer's Disease primarily characterized by?

• A. Improved communication between brain parts
• B. Destruction of nerve cells
• C. Production of excess neurotransmitters
• D. Increased cognitive function

Answer: (B)

Alzheimer's Disease is primarily characterized by the destruction of nerve cells, which leads to a progressive decline in cognitive function and memory. This neurodegenerative condition involves the accumulation of amyloid plaques and neurofibrillary tangles in the brain, which contribute to the death of neurons and disrupt communication between different areas of the brain. As these nerve cells are damaged or die, individuals experience a gradual loss of their ability to think, remember, and carry out daily activities effectively. In contrast to this correct understanding, other options do not accurately reflect the nature of Alzheimer's Disease. The idea of improved communication between brain parts would contradict the disease's impact on neural connections. Similarly, the production of excess neurotransmitters does not characterize Alzheimer's; instead, there is often a decrease in neurotransmitter levels, specifically acetylcholine, which is crucial for learning and memory. Finally, increased cognitive function is the opposite of what occurs in Alzheimer's, as the disease leads to cognitive decline rather than enhancement.

Alzheimer's Disease is primarily characterized by the destruction of nerve cells, which leads to a progressive decline in cognitive function and memory. This neurodegenerative condition involves the accumulation of amyloid plaques and neurofibrillary tangles in the brain, which contribute to the death of neurons and disrupt communication between different areas of the brain. As these nerve cells are damaged or die, individuals experience a gradual loss of their ability to think, remember, and carry out daily activities effectively.

In contrast to this correct understanding, other options do not accurately reflect the nature of Alzheimer's Disease. The idea of improved communication between brain parts would contradict the disease's impact on neural connections. Similarly, the production of excess neurotransmitters does not characterize Alzheimer's; instead, there is often a decrease in neurotransmitter levels, specifically acetylcholine, which is crucial for learning and memory. Finally, increased cognitive function is the opposite of what occurs in Alzheimer's, as the disease leads to cognitive decline rather than enhancement.