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Opisthotonus or opisthotonos (from Ancient Greek: ὄπισθεν, romanized: opisthen, lit. 'behind' and τόνος, tonos, '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.
Abnormal posturing is an involuntary flexion or extension of the arms and legs, indicating severe brain injury. It occurs when one set of muscles becomes incapacitated while the opposing set is not, and an external stimulus such as pain causes the working set of muscles to contract. [1] The posturing may also occur without a stimulus.
The posterior end of the lower jaw bones contains a quadrate bone, allowing jaw extension. The anterior tips of the lower jaw bones are joined by a flexible ligament allowing them to bow outwards, increasing the mouth gape. [76] [77] The Pacific tree frog and the Baja California chorus frog are some of the only frog species that make a "ribbit ...
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This is a list of add-ons for Internet Explorer, which includes extensions and toolbars. They are to be used in conjunction with Internet Explorer, and not alone, as they depend on services provided by the browser, or its accompanying Windows RSS Platform.
For those looking to keep tabs on the big man, or simply plan ahead to Christmas Eve, here's what to know about the NORAD and Google's Santa trackers. When does the NORAD Santa tracker go live?
Drowning is a type of suffocation induced by the submersion of the mouth and nose in a liquid. Submersion injury refers to both drowning and near-miss incident. Most instances of fatal drowning occur alone or in situations where others present are either unaware of the victim's situation or unable to offer assistance.
Olympic kite surfer Bruno Lobo used his athletic prowess for good while rescuing a drowning woman from the ocean.. Lobo was kite surfing and testing his camera off the coast of the city of São ...