General terms are available that encompass commonly used terms for patients newly diagnosed. ulnar nerve

General Terms

lower motor neuron

Nerve cells starting at the spinal cord or brain stem and ending at the muscle fibers. The loss of lower motor neurons leads to weakness, twitching of muscles (fasciculations), and loss of muscle bulk (atrophy).

limb onset

Refers to the type of ALS where initial symptoms appear in the limbs. The most common form of ALS, the other type being bulbar-onset.


The application of a band or bandage.


To expose a structure or organism to radiation.

inflammatory disease

Diseases that are characterized by activation of the immune system to abnormal levels that lead to disease.


The occurrence of new cases of a condition. The incidence rate describes the frequency with which cases are identified. Incidence is commonly measured in new cases per 1,000 (or 100,000) of population at risk, per year. The incidence of ALS typically varies between 1 and 4 diagnoses per 100,000 of populations per year in Western nations.


Prevention or interference with the development of an immunologic response; may reflect natural immunologic unresponsiveness (tolerance); may be artificially induced by chemical, biological, or physical agents, or may be caused by disease.


The study of all aspects of the immune system including its structure and function, disorders of the immune system, blood banking, immunization and organ transplantation.

immune system

A complex system that is responsible for distinguishing us from everything foreign to us, and for protecting us against infections and foreign substances. The immune system works to seek and kill invaders.


Free from acquiring a certain infectious disease; resistant to an infectious disease.