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opisthotonus

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opisthotonus
Neurology A type of spasm in which the head and heels arch backward in extreme hyperextension and the body forms a reverse bow; opisthotonus may be seen in scorpion stings, due to cholinergic hyperstimulation by venom


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This condition, known as opisthotonus, is a kind of tetanic spasm lasting up to two minutes before the muscles relax and the contraction subsides prior to the onset of another spasm.
All animals displayed neurologic disorders characterized by the inability to maintain buoyancy and by opisthotonus, tremors, and seizures (Figure 1, panel A).
Extrapyramidal Haloperidol, Rigidity, opisthotonus, chlorpromazine laryngospasm Narcotic Morphine, heroin, CNS depression, miosis, codeine slow respiration, hypotension Withdrawal Various; alcohol, Piloerection, barbiturates, cocaine, hypertension, benzodiazepines, etc.
 
 
 
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