1. About.com
  2. Health
  3. Alzheimer's / Dementia

Video:Effects of Alzheimer's Disease

Alzheimer's disease tangles the brain's nerve cells and can cause memory loss, confusion, and disorientation. Learn more about the effects of Alzheimer's disease.

Transcript:Effects of Alzheimer's Disease

A Healthy Brain

The healthy brain is made up of millions of interconnecting nerve cells, called neurons. Neurons constantly communicate with each other by sending signals through tentacle-like connections called axons and dendrites.

How Alzheimer's Disease Affects the Brain

The brain of a patient with Alzheimer's disease is much different. The orderly, organized arrangement of nerve cells found in a healthy brain become entangled, full of senile plaques and neurofibrillary tangles. The plaques and tangles interfere with the normal activity between neurons in the area of the brain responsible for intellectual thought.

Symptoms of Alzheimer's Disease

Alzheimer's disease affects people in different ways. The disease is slowly progressive from onset. Memory loss, confusion, disorientation, and poor judgment are a few of the symptoms of Alzheimer's disease.

Copyrighted animations provided by Blausen Medical.

©2012 About.com. All rights reserved. 

A part of The New York Times Company.

We comply with the HONcode standard
for trustworthy health
information: verify here.