@_dr.sara: The hallmarks of Alzheimer's Disease: Amyloid-beta plaques accumulate in the brain tissue (parenchyma) outside the cells, while neurofibrillary tangles of tau protein form inside the cells (neurons), disrupting their internal transport system. 🧠 Together, these abnormalities block vital communication signals between neurons and eventually lead to cell death. ##alzheimers #pathology #underthemicroscope #STEMTok #disease