Keyword Analysis & Research: rigidit�� decerebrata e decorticata

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What is decerebrate rigidity?

Also known as extensor posturing, decerebrate rigidity is a term that describes the involuntary extensor positioning of the arms, flexion of the hands, with knee extension and plantar flexion when stimulated as a result of a midbrain lesion.[1] 

What is decorticate and decerebrate posturing?

Decorticate and decerebrate posturing are both considered pathological posturing responses to usually noxious stimuli from an external or internal source.  Both involve stereotypical movements of the trunk and extremities and are typically indicative of significant brain or spinal injury.[1]

When was decorticate posturing first identified?

The Nobel Laurette Charles Sherrington first described decerebrate posturing in 1898 after transecting the brainstems of live monkeys and cats. [2] Synonymous terms for decorticate posturing include abnormal flexion, decorticate rigidity, flexor posturing, or decorticate response.

What are the symptoms of decerebrate rigid posture?

Following are the most common symptoms of decerebrate rigid posture, however it may vary depends upon lesion and type of Injury : A severe muscle spasticity or rigidity of the neck and back may occur in severe cases of decerebrate rigid posture also called Opisthotonos posture.

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