Understanding Alzheimer's - Amyloid plaques - HERO
Alzheimer's disease. Computer illustration of amyloid plaques amongst neurons. Amyloid plaques are characteristic features of Alzheimer's disease. They lead to degeneration of the affected neurons, which are destroyed through the activity of microglia cells. The neurons are embedded in a network of astrocytes (darker cells).
JUAN GAERTNER/SCIENCE PHOTO LIBRARY