Deck 4: Meningeal Coverings of the Brain and Spinal Cord

Question 1

While visiting his 79-year-old mother, her son noticed that she had developed a wide-based and unsteady gait. In which of the following structures is a lesion most likely located?

A) Intermediate cerebellar hemisphere
B) Posterior lobe
C) Lateral cerebellar hemisphere
D) Vermis
E) Anterior lobe

Answer 1

D

Question 2

The vestibular system connects to the cerebellum through fibers that primarily travel in which of the following?

A) Middle cerebellar peduncle
B) Inferior cerebellar peduncle
C) Superior cerebellar peduncle
D) Basilar pons
E) Superior medullary vellum

Answer 2

B

Question 3

A magnetic resonance image of a 36-year-old woman involved in a motor vehicle collision indicates a lesion in the flocculonodular lobe. Which of the following deficits is this patient likely to exhibit?

A) Dysrhythmia
B) Appendicular ataxia
C) Wide-based gait
D) Loss of position sense
E) Eye movement abnormalities

Answer 3

E

Question 4

A physician orders a computed tomographic scan for a 42-year-old man after he is admitted to the emergency department with nausea, vomiting, and a headache that has progressively worsened throughout the day. A hemorrhagic lesion is revealed in the superior half of the cerebellum. Which of the following blood vessels primarily supplies this area of the cerebellum?

A) Posterior inferior cerebellar artery
B) Short circumferential branches of the basilar artery
C) Superior cerebellar artery
D) Vertebral artery
E) Anterior inferior cerebellar artery

Question 5

A 59-year-old retired Air Force captain with a history of alcohol abuse is examined by a neurologist after waking up with nausea, vomiting, and a feeling of unsteadiness. During the examination the man exhibits dysmetria in heel-to-shin and finger-to-nose testing on the right and falls to the right as he attempts to stand. Which of the following most specifically describes the patient's dysmetria during the finger-to-nose and heel-to-shin maneuvers?

A) Titubation
B) Dysdiadochokinesia
C) Appendicular ataxia
D) Dysphagia
E) Truncal ataxia

Question 6

In which of the following is a lesion most likely located?

A) Right cerebellar hemisphere
B) Left and right superior cerebellar peduncle
C) Flocculonodular lobe
D) Left cerebellar hemisphere
E) Right and left inferior cerebellar peduncle

Question 7

The deep cerebellar nuclei primarily receive their input from which of the following?

A) Stellate cells
B) Basket cells
C) Purkinje cells
D) Climbing fibers
E) Parallel fibers

Question 8

A 39-year-old woman has difficulty rapidly supinating and pronating her hand. This deficit most characteristically describes which of the following?

A) Dysmetria
B) Dysdiadochokinesia
C) Hypotonia
D) Truncal ataxia
E) Titubation