spasmo-, spasm-, spas- +
(Greek > Latin: draw, tear, rend, pull; tension, convulsion; sudden, involuntary contractions)
All of the symptoms may be precipitated or aggravated by hyperventilation.
2. Hypertonic (high tension), so that the muscles are stiff and the movements awkward.
3. Relating to spasm or to spasticity; that is, affected by involuntary jerky muscular contractions; resembling a spasm
For example, with spasticity of the legs (spastic paraplegia) there is an increase in tone of the leg muscles so they feel tight and rigid and the knee jerk reflex is exaggerated.
It is one of the most powerful poisons known.
2. Irritability or spasmodic stricture of the urethra (tube that conveys urine from the bladder to the outside).
2. The sudden constriction of an artery, leading to a decrease in its diameter and in the amount of blood it can deliver.
2. Shaving cramp; an occupational dystonia affecting the hands and fingers of barbers.