decerebrate


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decerebrate

 [de-ser´ĕ-brāt]
1. to eliminate cerebral function by transection of the brainstem or ligation of the common carotid arteries and basilar artery at the center of the pons.
2. a laboratory animal so prepared.
decerebrate rigidity a posture found in those with lesions of the upper part of the brainstem or severe bilateral lesions of the cerebrum; the patient lies in rigid extension with the arms internally rotated at the shoulders, elbows, knees, and hips extended, and fingers, ankles, and toes flexed. The jaw may be clenched with the neck hyperextended. Called also decerebrate posturing.
Decerebrate rigidity (or posturing).

de·cer·e·brate

(dē-ser'ĕ-brāt),
1. To cause decerebration.
2. Denoting an animal so prepared, or a patient whose brain has suffered an injury that renders the patient, in neurologic behavior, comparable with a decerebrate animal.

decerebrate

/de·cer·e·brate/ (-ser´ĕ-brāt) to eliminate cerebral function by transecting the brain stem or by ligating the common carotid arteries and basilar artery at the center of the pons; an animal so prepared, or a brain-damaged person with similar neurologic signs.

decerebrate

(dē-sĕr′ə-brāt′)
tr.v. decere·brated, decere·brating, decere·brates
To eliminate cerebral brain function in (an animal) by removing the cerebrum, cutting across the brainstem, or severing certain arteries in the brainstem, as for purposes of experimentation.
adj. (also -brĭt)
1. Deprived of cerebral function, as by having the cerebrum removed.
2. Resulting from or as if from decerebration: decerebrate rigidity; decerebrate movements.
3. Lacking intelligence or reason.
n. (also -brĭt)
A decerebrate animal or person.

de·cer′e·bra′tion n.

decerebrate

[dēser′əbrāt]
1 lacking a cerebrum.
2 lacking neural communication between the cerebrum and lower portions of the central nervous system.

de·cer·e·brate

(dē-ser'ĕ-brāt)
1. To cause decerebration.
2. Denoting an animal so prepared, or a patient whose brain has suffered an injury causing neurologic impairment comparable with that of a decerebrate animal.

decerebrate

Suffering from the effects of loss of cerebral activity, such as thought, consciousness, sensation and the power of voluntary movement.

decerebrate

to eliminate cerebral function by transecting the brainstem or by ligating the common carotid arteries and basilar artery at the center of the pons; an animal so prepared, or a brain-damaged animal with similar neurological signs.

decerebrate rigidity
rigid extension of the limbs as a result of decerebration; also occurs as a result of lesions in the upper brainstem.
References in periodicals archive ?
Clinically there is extreme irritability, various degree of brain function depression ranging from mere confusion to decerebrate coma (3-8).
Indicators of severe cerebral edema include decorticare or decerebrate posture, abnormal response to pain, a neurogenic respiratory pattern, and cranial nerve palsy.
vertigo, confusion, disorientation, amnesia, lethargy, hallucination, meningismus, choreiform movements, ataxia, tremor, convulsions, hemiparesis, decerebrate posturing, locked-in syndrome, or coma); or unexplained illness [greater than]48 hours in duration associated with fever, diarrhea, nausea, vomiting, or abdominal pain and any one of the following laboratory values: 1) hemoglobin [less than]8 gm/dL; 2) platelets [less than ]100,000 [mm.
A I ALWAYS find it depressing when I discover yet another entirely decerebrate individual among my readers.
The resulting syndrome is characterized by deep coma, paralysis, decerebrate posturing, and pinpoint pupils.
These behavioral similarities between decerebrate and normal newborns are consistent with current knowledge of developmental neuroanatomy: even though cerebral hemispheres are present in gross structure in normal newborns, they are very immature microscopically compared to the brainstem.
Proprioceptive modulation of hip flexor activity during the swing phase of locomotion in decerebrate cats.
Carbachol injections into these sites induced atonia in decerebrate cats (88) and REM sleep in freely moving rats (89,90).
III, IV), from moderate to severe headache, nuchal rigidity 3 Mild focal deficit, lethargy, or confusion 4 Stupor, from moderate to severe hemiparesis, early decerebrate rigidity 5 Deep coma, decerebrate rigidity, moribund appearance Note: From "Surgical Risk related to time of intervention in the repair of intracranial aneurysms," by W E Hunt and R.
described a patient with severe TBI with decerebrate posturing [18]; because of significant lower-left leg restlessness, the patient developed ulcers.