Amyloid plaques are an indicator of Alzheimer's disease,and are best described as ____.

Question

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Amyloid plaques are deposits of beta-amyloid proteins that accumulate outside the neurons in the brain along with clumps of dead neurons. They are a hallmark of Alzheimer's disease. Option A is incorrect as iron and calcium deposits are seen in conditions such as stroke, and option B is incorrect as Alzheimer's disease primarily affects the hippocampus and cortex areas of the brain and does not lead to widespread neuronal death. Option D is incorrect as twisted and tangled neurons are a feature of another brain disorder called neurofibrillary tangles.

Amyloid Plaques Are an Indicator of Alzheimer's Disease,and Are Best