Brain Injury Terms and Definitions

Alexander disease
Alexander disease is considered one of the leukodystrophies, a group of disorders where the primary abnormality is the inability to maintain the fatty covering (myelin) that insulates nerve fibers in the brain. Alexander disease is a rare disorder of the nervous system that usually begins during infancy or early childhood.

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.

Pantothenate kinase-associated neurodegeneration
Pantothenate kinase-associated neurodegeneration (formerly called Hallervorden-Spatz syndrome) is a disorder of the nervous system. The condition is characterized by progressive difficulty with movement and speech

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

Alzheimer's disease
Severe form of dementia caused by significant deterioration of brain tissue.

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.

endorphins
Naturally occurring molecules made up of amino acids. Endorphins attach to special receptors in the brain and spinal cord to inhibit pain signals.

Orofacial Birth Defect
Choanal atresia, cleft lip, cleft palate

Spina bifida
Is a condition that often has disabling consequences. With severe spina bifida, a person’s legs and feet are paralyzed, and there are problems with bowel and bladder control. Learning disabilities are common, and mental retardation sometimes occurs

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.