Decrease (-) Restore Default Increase (+)
Bookmark and Share

Health Library

Back to MainBack to Main   Print This Page Print    Email to a Friend Email
    Brain components
   

The brain is composed of more than a thousand billion neurons. Specific groups of them, working in concert, provide us with the capacity to reason, to experience feelings, and to understand the world. They also give us the capacity to remember numerous pieces of information.

The 3 major components of the brain are the cerebrum, cerebellum, and brain stem.

The cerebrum is divided into left and right hemispheres, each composed of a frontal, temporal, parietal, and occipital lobe. The cerebral cortex (gray matter) is the outside portion of the cerebrum and provides us with functions associated with conscious thought. The grooves and folds increase the cerebrum’s surface area, allowing us to have a tremendous amount of gray matter inside of the skull. Deep to the gray matter is the cerebral "white matter." The white matter provides for the communication between the cortex and lower central nervous system centers.

The cerebellum is located near the base of the head. It creates automatic programs so we can make complex movements without thinking.

The brain stem connects the brain with the spinal cord and is composed of 3 structures: the midbrain, pons, and medulla oblongata. The brain stem provides us with automatic functions that are necessary for survival.


Review Date: 11/29/2012
Reviewed By: Luc Dupont Jasmin, MD, PhD, FRCS (C), FACS, Department Neurosurgery at Cedars-Sinai Medical Center, Los Angeles, CA. Department of Surgery Ashland Community Hospital, Ashland, OR. Department of Anatomy at UCSF, San Francisco, CA. Review provided by VeriMed HealthCare Network.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
adam.com

Medical Care

Cancer
Pregnancy & Prenatal Classes
Weight Loss
Orthopedics
Heart Disease
Neurology
Women's Health
More Medical Care

Locations

Hospitals
Immediate Care
Health Centers
Emergency Room
Doctors Offices
Specialists
Affiliate Hospitals

Patients and Visitors

MyChart
Pay Your Bill
Request an Appointment
Get Healthy
Support Groups
Fitness Groups
Mobile Applications
Clinical Trials
Online Nursery
Classes and Events
Send an eCard
Patient Stories
Places to Stay

About Us

Quality Report 
Careers
Ways to Help
Community Outreach
Contact Us
(502) 629-1234

Connect with us

© 2014 Norton Healthcare
Serving Kentucky and Southern Indiana