Brain Injury Terms and Definitions

stroke
A condition produced by a blood clot that lodges in an artery and blocks the flow of blood to a portion of the brain, producing symptoms ranging from paralysis of limbs and loss of speech to unconsciousness and death. Less commonly, a stroke may be the result of bleeding into the substance of the brain.

hypothalamus
The part of the brain that controls body functions such as eating, sleeping and sexual behavior, maintains body temperature and chemical balance, and regulates many hormones.

Central nervous system Birth Defect
Neural tube defects, hydrocephaly, holoprosencephaly, Dandy-Walker malformation

Crouzon syndrome
Many of the signs of Crouzon syndrome result from the early fusion of the skull bones during childhood. Abnormal growth of these bones leads to wide-set, bulging eyes due to shallow eye sockets; eyes that do not point in the same direction (strabismus); a beaked nose; and an underdeveloped upper jaw.

vascular dementia
A common form of dementia that results either from narrowing and blockage of the arteries that supply blood to the brain or by strokes that cause an interruption of blood flow within the brain.

Beare-Stevenson cutis gyrata syndrome
Beare-Stevenson cutis gyrata syndrome is a genetic disorder characterized by skin abnormalities and the premature fusion of certain bones of the skull craniosynostosis), which prevents further growth of the skull and affects the shape of the head and face.

Cardiovascular Birth Defect
Conotruncal heart defects, septal heart defects, obstructive heart defects, atrioventricular septal defects, single ventricle, anomalous pulmonary venous return, heterotaxy, Ebstein malformation.

Gastrointestinal Birth Defect
Esophageal atresia and tracheoesophageal fistula, intestinal atresia, biliary atresia

brain plasticity
Theories based on the idea that the brain may have the ability to use surviving brain cells in a different way to make up for those brain cells that are damaged.

amyotrophic lateral sclerosis (ALS)
Also known as Lou Gehrig's disease, ALS causes degeneration of the nerve cells in certain regions of the brain and spinal cord that control the muscles.