Neuromuscular Medicine Glossary
100 terms total — 24 showing — Last updated 15 Sep 2026
AAEM AAEM
American Association of Electrodiagnostic Medicine, the professional organization that sets standards for electrodiagnostic testing and neuromuscular medicine practice.
AAEM
American Association of Electrodiagnostic Medicine, the professional organization that sets standards for electrodiagnos...
acetylcholine receptor antibody
Autoantibodies targeting acetylcholine receptors at the neuromuscular junction, primarily associated with myasthenia gra...
ALS
Amyotrophic lateral sclerosis, a progressive motor neuron disease affecting voluntary muscle control.
anticholinesterase test
A diagnostic procedure using edrophonium or neostigmine to temporarily improve muscle weakness in myasthenia gravis.
Becker muscular dystrophy
An X-linked recessive muscular dystrophy caused by mutations in the dystrophin gene, milder than Duchenne muscular dystr...
Blink Reflex
An electrodiagnostic test that evaluates the trigeminal and facial nerve pathways by measuring the reflex blink response...
Blocking
Intermittent failure of neuromuscular transmission resulting in absent muscle fiber action potentials during single-fibe...
Central Core Disease
A congenital myopathy characterized by central cores in muscle fibers that lack mitochondria and oxidative enzyme activi...
channelopathy
A group of disorders caused by dysfunction of ion channels affecting muscle membrane excitability and contraction.
CIDP
Chronic Inflammatory Demyelinating Polyneuropathy. An acquired autoimmune peripheral nerve disorder requiring specific d...
CMAP
Compound muscle action potential measured during nerve conduction studies.
compound motor action potential
The summated electrical response of muscle fibers to stimulation of their motor nerve, recorded in nerve conduction stud...
conduction block
Focal failure of nerve impulse transmission resulting in reduced CMAP amplitude with proximal versus distal stimulation.
Conduction Velocity
The speed at which electrical impulses travel along nerve fibers, measured in meters per second during nerve conduction...
congenital myasthenic syndrome
Hereditary neuromuscular disorder caused by genetic defects affecting neuromuscular junction structure or function from...
creatine kinase
Enzyme released from damaged muscle cells, elevated levels indicate muscle injury or disease.
critical illness myopathy
Acute muscle weakness and atrophy developing in critically ill patients, often associated with sepsis and corticosteroid...
Curare test
Historical diagnostic test using curare (d-tubocurarine) to unmask latent myasthenia gravis. Now obsolete due to safety...
Decremental CMAP
Progressive reduction in compound muscle action potential amplitude during repetitive nerve stimulation, indicating neur...
decremental response
Progressive decline in CMAP amplitude during repetitive nerve stimulation, indicating neuromuscular junction dysfunction...
dermatomyositis
Inflammatory myopathy characterized by distinctive skin changes and muscle weakness, often associated with underlying ma...
distal latency
Time interval between nerve stimulation and onset of the compound muscle action potential in nerve conduction studies.
Duchenne muscular dystrophy
X-linked recessive muscular dystrophy caused by dystrophin gene mutations, characterized by progressive muscle weakness...
Eaton-Lambert syndrome
Alternative name for Lambert-Eaton myasthenic syndrome. A presynaptic neuromuscular junction disorder often associated w...