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Brain tour

Brain Basics
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Alzheimer's Disease and the Brain
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1. Three pounds, three parts

Your brain is your most powerful organ, yet weighs only about three pounds. It has a texture similar to firm jelly.

It has three main parts:

  1. The cerebrum fills up most of your skull. It is involved in remembering, problem solving, thinking, and feeling. It also controls movement.
  2. The cerebellum sits at the back of your head, under the cerebrum. It controls coordination and balance.
  3. The brain stem sits beneath your cerebrum in front of your cerebellum. It connects the brain to the spinal cord and controls automatic functions such as breathing, digestion, heart rate and blood pressure.

©2009 Alzheimer's Association. www.alz.org. All rights reserved. Illustrations by Stacy Janis.
This is an official publication of the Alzheimer’s Association but may be distributed by unaffiliated organizations and individuals. Such distribution does not constitute an endorsement of these parties or their activities by the Alzheimer’s Association.