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This exact case applies to this and the following 5 questions. A 22-year-old male is brought to the ER with knife wounds and the following symptoms: -> initial flaccid paralysis of his right arm and leg, -> deficits in proprioception and vibratory sensation on his right side below the level of C6, and -> decreased pain and temperature sensation on his left side below the level of C4.A lesion in which of the following locations best accounts for the flaccid paralysis of the right extremities? Pick all that apply.

Which of the following DOES NOT cause Horner’s syndrome?

What is suggested by the combination of absence of pain and temperature sensation from both the right side of his face and the left side of his body?

Identify the structure indicated by the tip of the red arrow.  

Identify the origin of the majority of these axons.

Difficulty sitting/standing and a positive Rhomberg test are signs of

An MRI showed the the lesion had been caused by an infarct in the left superior cerebellar artery which structures were injured? Pick all that apply.

Which of the following receives projections from this structure (pick all that apply)?

What is the significance of the decreased sweating, ptosis, and miosis on the left side of the face?

A 55 year old man suddenly began having continuous wild, uncontrollable flapping and circular movements of the left arm, and occasional jerky movements of the left leg. Further neurologic testing was unremarkable.  What is suggested by uncontrollable flapping of the left arm and jerky movements of the left leg?