2. 2 John is a 57 year old man who developed gait difficulty which has worsened over the past months. He noticed that he needed to stand for apart to maintain his balance and that he waddled when he walked. When tested by the neurologist, there was no sensory loss nor speech deficits. When asked to touch the doctor’s fingers then his nose, John missed his nose slightly. When asked to slide his right heel down his left shin, his heel slid sideways and clumsily across. The doctor ordered an MRI of Johns’s head.

3. 1. What term could be used for John’s gait a. Stiff b. Fesinating c. Ataxia d. Spastic 2. Where is the lesion a. Posterior columns only b. Cerebellar tracts only c. Cerebellum d. Spinothalamic tract

4. 3. Where in the brain would the neurologist expect to visualize it on MRI? a. Red nucleus b. Cerebellar vermis c. Cerebellar cortex d. Internal capsule

5. 4. The Dorsal spinocerebellar tract, ventral spinocerebellar tract, and cuneocerebellar tract, in a general sense, show convergence in their projections to the cerebellum. The principal region within the cerebellum where these fibers converge is a. Anterior lobe b. Flocculonodular lobe c. Posterior lobe d. Fastigial nucleus e. Dentate nucleus

6. 5. A man presents with a wide- based, ataxic gait during his attempts at walking. He is also unsteady and sways when standing and displays a tendency to fall backward or to either side in a drunken manner. A lesion is most likely located in the a. Hemispheres of the posterior cerebellar lobe b. Anterior limb of the internal capsule c. Dentate nucleus d. Anterior lobe of the cerebellum e. Flocculonodular lobe of the cerebellum