Aram volunteers at a nursing home, where he reads and writes letters for residents who can't do those things for themselves. Though he visits every week, Mr. Larue never remembers him, and he has to introduce himself each time they interact. One of the nurses explains that Mr. Larue has Alzheimer's disease (AD). The most characteristic changes in the brain associated with AD are
A)plaque and tartar.
B)threads and tangles.
C)threads and tartar.
D)plaques and tangles.
E)threads and plaques.

Question

Quizplus · Accepted Answer

The most characteristic changes in the brain associated with Alzheimer's disease (AD) are plaques and tangles. Plaques refer to the buildup of beta-amyloid protein fragments between nerve cells, and tangles refer to the twisted fibers of tau protein within cells. These changes disrupt the normal functioning of neurons, leading to the symptoms of Alzheimer's disease.

Aram Volunteers at a Nursing Home, Where He Reads and Writes