09-13-2006, 02:40 PM
A 63-year-old man has a resting tremor of his fingers and rigidity of his limbs and trunk. There is increased resistance when the arms or neck are flexed. His face looks expressionless. His memory is preserved, and sensation and strength are normal. Which of the following neuronal pathways is most likely affected?
A. Cerebello-rubro-thalamic
B. Basal nucleus of Meynert-cortex
C. Mesolimbic
D. Nigrostriatal
E. Striatonigral
F. Vermis-spinal motoneurons
A. Cerebello-rubro-thalamic
B. Basal nucleus of Meynert-cortex
C. Mesolimbic
D. Nigrostriatal
E. Striatonigral
F. Vermis-spinal motoneurons