Concept explainers
39-Year-Old Female with Traumatic Brain Injury
Margaret Bryans, a 39-year-old female, lost control while skiing and hit her head on a tree. She regained consciousness en route to the hospital and appeared agitated and combative. Paramedics observed that she had a right hemiparesis (muscle weakness), with a nearly complete paresis of her right upper extremity and a partial paresis of the right lower extremity. A head CT scan revealed an acute subdural hematoma and an extensive subarachnoid hemorrhage. Doctors noted that she was able to follow commands from medical personnel. However, she could only speak haltingly, using simple words.
Surgery to remove large clots from the subarachnoid space was performed immediately. Two weeks after the surgery, she showed significant improvement in her speech and motor function.
3. NCLEX-STYLE What specific parts of the brain region you identified in question 1 have been affected by the injury so as to cause the muscle weakness and language problems? (Hint: Use Figures 12.7 and 12.8.)
a. The left midlateral motor cortex
b. The superior area of her right motor cortex
c. The superior area of her left motor cortex and Broca’s area
d. The inferolateral area of her left motor cortex and Wernicke s area
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