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.