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CHAPTER 6: The Brainstem, Cranial Nerves, and Visual Pathways

A patient with an upper motor neuron lesion in the corticobulbar tract will have:

A. ipsilateral weakness.

B. bilateral weakness.

C. contralateral weakness.

D. no weakness.

C. contralateral weakness.

The superior colliculus is a ______ center, and the inferior colliculi are involved in ______ processing.

A. taste and sound; vision

B. sound; vision

C. visual reflex; sound

D. motor processing; auditory

C. visual reflex; sound

A lesion rostral to the pyramidal decussation causes ______ hemiplegia.

A. alternating

B. bilateral

C. ipsilateral

D. contralateral

D. contralateral

Your patient has bitemporal visual field loss. You suspect a lesion

A. of the left optic nerve.

B. at the optic chiasm.

C. at the left optic tract.

D. at the optic radiation (Meyer loop).

B. at the optic chiasm.

Presence of consensual pupil response when shining a light in the right eye indicates

A. intact CNs II and III bilaterally.

B. intact CN III bilaterally.

C. intact right CN II and left CN III.

D. intact left CN II and left CN III.

C. intact right CN II and left CN III.

With locked-in-syndrome, the paralyzed patient is awake, with intact cognition and vertical eye movements due to the following:

A. Corticospinal and corticobulbar tract damage, with sparing of reticular formation and supranuclear ocular motor pathway

B. Vestibulospinal and spinothalamic tract damage, with sparing of corticobulbar tract and upper cortical function

C. Spinothalamic and corticospinal tract damage, with sparing of vestibulo-ocular pathways

D. Brainstem stroke with sparing of spinothalamic and ...

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