Lesions rostral to the red nucleus result in which of the following?
A) Lower extremity weakness B) Upper limb flexion and lower limb extension C) Loss of pain and temperature sensation D) Deviation of the tongue on protrusion E) Weakness of the masticatory muscles
A 58-year-old woman complains of left hand weakness that she noticed while planting flowers in her garden. Neurological examination indicates weak wrist and finger flexion and extension. She also has weakness when abducting, adducting, and opposing her thumb. All other motor and sensory tests are normal. The combined deficits in this patient can most accurately be attributed to a lesion in which of the following?
A) Left precentral gyrus B) Left postcentral gyrus C) Right postcentral gyrus D) Right precentral gyrus E) Superior frontal gyrus
A 24-year-old woman is brought to the emergency department from the scene of a motor vehicle collision. A neurological examination reveals that her tongue deviates to the left on protrusion and that she is unable to raise the right corner of her mouth when asked to smile. In addition, she is unable to move the entire right side of her body. Which of the following represents the most likely location of a lesion?
A) Right anterior limb of the internal capsule B) Pontine tegmentum C) Left posterior limb of the internal capsule D) Right precentral gyrus E) Pyramidal decussation