Alzheimer's disease pathology
Which finding is characteristic of Alzheimer's disease?
Answer B: explanation for every choice
A
Substantia nigra degeneration causes Parkinson's disease.
B
Correct. Alzheimer's is defined by extracellular amyloid plaques, intracellular tau tangles, and loss of acetylcholine-producing neurons.
C
Central demyelination characterizes multiple sclerosis.
D
Caudate atrophy is characteristic of Huntington's disease.
TakeawayAlzheimer's: plaques, tangles, and loss of acetylcholine neurons.
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Reviewed 2026-11-05 by a medical student. Spot an error? Report it with question ID ps125.