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315 head injury decorticate posturing indicates a

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Unformatted text preview: the lower extremities with possible plantar flexion of the feet. Decerebrate posturing is an abnormal extension of the upper extremities with internal rotation of the upper arms and wrists and an extension of the lower extremities with some internal rotation. 315. Head Injury Decorticate posturing indicates a lesion in the cerebral hemisphere or disruption of the corticospinal tracts. Decerebrate posturing indicates damages in the diencephalon, midbrain, or pons. 316. Communication Babbling sounds are common between the ages of 3 and 4 months. Additionally, during this age, crying becomes more differentiated. Between the ages of 1 and 3 months, the infant will produce cooing sounds. An increased interest in sounds occurs between 6 and 8 months, and the use of gestures occurs between 9 and 12 months. 317. Nutrition Breast milk or formula is the main food throughout infancy. Rice cereal mixed with breast milk or formula is introduced at 4 months of age. Strained vegetables, fruits, and meats are introduced one at a time and can begin at 6 months of age. 318. Motor Deverlopmen...
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