Glossary of ALS-Related Medical and Scientific Terms
(Presented by The ALS Association Greater New York Chapter)
Select a letter from the list above.
Several large clusters of nerve cells, including the striatum and the substantia nigra, deep in the brain below the cerebral hemispheres.
Type of growth factor
An unexplained episode of facial muscle weakness or paralysis that begins suddenly and steadily worsens.
Determination of the potency or concentration of a compound by its effect upon animals, isolated tissues, or microorganisms, as compared with an analysis of its chemical or physical properties.
The chemistry of biology; the application of the tools and concepts of chemistry to living systems. Biochemists study the structures and physical properties of biological molecules.
The process of developing tools and processes to quantify and collect data to study biological systems logically.
The number of times per minute that the eyelid automatically closes -- normally 10 to 30 per minute.
|blood-brain barrier (BBB)
A protective barrier formed by the blood vessels and glia of the brain. It prevents some substances in the blood from entering brain tissue.
Slowness of movement.
Slowness of thought processes.
Another term for stroke.
A condition that describes the deterioration of the upper motor nerve cells (neurons).
Bulbar ALS is the type in which onset symptoms are in the facial muscles, speech and swallowing.
The muscles that control the speech, chewing and swallowing.