Understanding Alzheimer's Disease: Plaques and Tangles

What are beta-amyloid plaques primarily composed of?

• Lipids

• Carbohydrates

• Protein fragments

• Whole proteins

How do beta-amyloid plaques potentially affect neurons?

• They block cell-to-cell communication

• They increase synapse formation

• They decrease immune response

• They enhance neuron growth

What is still unclear about beta-amyloid plaques in Alzheimer's Disease?

• Their effect on blood flow

• Their role in causing or resulting from the disease

• Their chemical composition

• Their location in the brain

Where do neurofibrillary tangles form?

• Outside the neurons

• In the bloodstream

• Inside the neurons

• In the spinal cord

What role do tau proteins play in healthy neurons?

• They increase inflammation

• They disrupt microtubules

• They stabilize microtubules

• They form plaques

What happens to microtubules when tau proteins become tangled?

• They fall apart

• They increase in number

• They become stronger

• They form new connections

In which part of the brain do plaques and tangles first appear in Alzheimer's Disease?

• Temporal lobe

• Frontal lobe

• Occipital lobe

• Parietal lobe

What is a significant consequence of the spread of plaques and tangles in the brain?

• Increased brain size

• Enhanced memory

• Brain shrinkage

• Improved motor skills

How does the progression rate of Alzheimer's Disease vary?

• It is the same for all patients

• It varies from patient to patient

• It is faster in younger patients

• It is slower in patients with a healthy diet

What is the ultimate effect of widespread cell death in Alzheimer's Disease?

• Dramatic brain shrinkage

• Enhanced immune response

• Increased neuron production

• Improved cognitive function