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Neurology Exam: Structures and Functions

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Neurology Exam: Structures and Functions

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Questions and Answers

Which artery supplies the structures in the ventromedial regions of the medulla?

Posterior spinal and superior cerebellar arteries

Posterior spinal and posterior cerebral arteries

Posterior spinal and posteroinferior cerebellar arteries (correct)

Vertebral and anterior spinal arteries

In central facial paralysis resulting from damage of the facial nucleus, what is affected?

Paralysis of all contralateral facial muscles except the buccinator

Paralysis of ipsilateral facial muscles except the buccinator (correct)

Paralysis of all ipsilateral facial muscles

Paralysis of all contralateral facial muscles

In a stroke affecting the territory of the middle cerebral artery, where are weakness and sensory loss most severe?

In the ipsilateral face and arm

In the contralateral leg

In the ipsilateral leg

In the contralateral face and arm (correct)

What term is used for increased muscle tone through the range of motion of the limb?

Spasticity Signup and view all the answers

What is the most likely diagnosis for the 25-year-old man with the described symptoms?

Multiple sclerosis Signup and view all the answers

Which term best describes sudden, irregular, shock-like muscle contractions?

Myoclonus Signup and view all the answers

In the described neurologic syndrome, which artery's territory could be expected to be affected?

Right posterior inferior cerebellar artery Signup and view all the answers

What could cause hemiplegia and sensory deficit on the right side of the body?

Left middle cerebral artery infarction Signup and view all the answers

If the oculomotor nerve is sectioned, what may result except for:

Abduction of the eyeball Signup and view all the answers

Which nerve carries sensory input for taste?

The facial and glossopharyngeal nerves for the anterior 2/3 and posterior 1/3 of the tongue, respectively Signup and view all the answers

What is the usual cause of Wernicke's aphasia?

A lesion of the superior temporal gyrus Signup and view all the answers

What would result from the destruction of the lower cervical and upper thoracic ventral roots on the left side?

Dilated left pupil Signup and view all the answers