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Neuroanatomy/Cranial Nerves

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A 74 y/o woman with poorly controlled hypertension presents with

(a) inability to abduct the right eye,
(b) a left-sided paralysis of the upper and lower extremities, and
(c) a loss of proprioception, discriminative touch and vibratory sense on the left side of the body.

The patient's family indicates that these symptoms appeared suddenly after she had eaten dinner and were accompanied by nausea and dizziness.

Questions:
Explain symptoms a through c.
Where is the lesion (area of CNS and side)?
Identify the blood vessel that is probably involved.

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Solution Summary

The solution discusses neuroanatomy and cranial nerves.

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A 74 y/o woman with poorly controlled hypertension presents with

(a) inability to abduct the right eye,

The lesion affects the abducens nerve on the right side. The abducens nucleus is located in the lower pons.

(b) a left-sided paralysis of the upper and lower extremities, and

This sounds like damage to ...

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