The neurofibrillary tangles and amyloid plaques associated with Alzheimer's disease are observed only
A)on MRI or CT brain scans.
B)on functional brain scans.
C)during an autopsy.
D)during an EEG examination.

Question

Quizplus · Accepted Answer

Neurofibrillary tangles and amyloid plaques can only be observed during an autopsy, making option C the correct answer. MRI or CT scans can detect structural changes in the brain, but they do not provide information about the presence of tangles and plaques. Functional brain scans, such as PET scans, can show changes in brain activity, but again, they cannot directly visualize tangles and plaques. EEG examinations measure brain wave activity and cannot detect structural changes.

The Neurofibrillary Tangles and Amyloid Plaques Associated with Alzheimer's Disease