Opisthotonus or opisthotonos, from Greek roots, ὄπισθεν, opisthen meaning `behind` and τόνος tonos meaning `tension`, is a state of severe hyperextension and spasticity in which an individual`s head, neck and spinal column enter into a complete `bridging` or `arching` position. This abnormal posturing is an extrapyramidal eff...
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http://en.wikipedia.org/wiki/Opisthotonus
Spasm of the body where the head and heels are bent backward and the body is bowed forward. A type of extrapyramidal effect. ... (27 Sep 1997) ...
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http://www.encyclo.co.uk/local/20973
A form of spasm in which the muscles of the back are violently contracted causing the head and tail to come nearer each other and the abdomen to be protruded forward.
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http://www.encyclo.co.uk/visitor-contributions.php
No exact match found.
