Muscle Spasticity

A form of muscle hypertonia associated with upper MOTOR NEURON DISEASE. Resistance to passive stretch of a spastic muscle results in minimal initial resistance (a "free interval") followed by an incremental increase in muscle tone. Tone increases in proportion to the velocity of stretch. Spasticity is usually accompanied by HYPERREFLEXIA and variable degrees of MUSCLE WEAKNESS. (From Adams et al., Principles of Neurology, 6th ed, p54)

Also Known As:

Spastic; Clasp Knife Spasticity; Spasticity, Clasp-Knife; Spasticity, Muscle; Clasp-Knife Spasticity

Musculoskeletal Diseases: 751
- Muscular Diseases: 10368
  - Muscle Spasticity: 3189
Nervous System Diseases: 14737
- Neurologic Manifestations: 7223
  - Neuromuscular Manifestations: 24
    - Muscle Hypertonia: 185
      - Muscle Spasticity: 3189
Signs and Symptoms Pathological Conditions
- Signs and Symptoms
  - Neurologic Manifestations: 7223
    - Neuromuscular Manifestations: 24
      - Muscle Hypertonia: 185
        Muscle Spasticity: 3189

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Disease

Drug/Important Bio-Agent (IBA)