Question 1

Which of the following best describes the function of the thalamus in the central nervous system?

Accepted Answer

It acts as the main relay station for sensory information ascending to the cerebral cortex.

Question 2

A patient suffers a stroke that damages the left primary motor cortex. Which of the following symptoms is most likely to occur?

Accepted Answer

Paralysis of muscles on the right side of the body.

Question 3

Which brain region is primarily responsible for regulating autonomic functions such as heart rate, blood pressure, and respiratory rhythm?

Accepted Answer

Medulla oblongata

Question 4

Which of the following structures is NOT derived from the diencephalon during embryonic development?

Accepted Answer

Cerebellum

Question 5

A lesion in Broca’s area would most likely result in which of the following clinical presentations?

Accepted Answer

Inability to produce coherent speech, but comprehension remains intact.

Question 6

Which of the following best explains why hydrocephalus in adults can lead to brain damage, while in newborns it causes head enlargement?

Accepted Answer

The adult skull is rigid and cannot expand, increasing intracranial pressure.

Question 7

Which of the following is a function of the basal nuclei?

Accepted Answer

Regulating the intensity of slow or stereotyped movements

Question 8

A patient presents with wild, jerky, flapping movements and later develops severe mental deterioration. Which degenerative brain disorder is most likely?

Accepted Answer

Huntington’s disease

Question 9

Which of the following best describes the role of the reticular activating system (RAS)?

Accepted Answer

It maintains consciousness and filters out repetitive stimuli.

Question 10

Which of the following statements about the blood-brain barrier is correct?

Accepted Answer

It allows fat-soluble substances such as alcohol and nicotine to pass through.

Question 11

Which lobe of the cerebral cortex is primarily responsible for processing visual information?

Accepted Answer

Occipital lobe

Question 12

Which of the following best describes the function of the cerebellum?

Accepted Answer

It coordinates voluntary movements and maintains balance.

Question 13

Which of the following is a direct result of damage to the primary visual cortex?

Accepted Answer

Functional blindness

Question 14

Which of the following is a characteristic of the cerebral cortex?

Accepted Answer

It is the site of conscious mind, including awareness and voluntary movement.

Question 15

Which of the following best explains why a person with damage to the premotor cortex may lose the ability to type but still move their fingers?

Accepted Answer

The premotor cortex is responsible for planning and coordinating learned motor skills.

Question 16

Which of the following is a function of the hypothalamus?

Accepted Answer

Regulating body temperature, hunger, and water balance

Question 17

Which of the following best describes the difference between anterograde and retrograde amnesia?

Accepted Answer

Anterograde amnesia prevents new memories from forming; retrograde amnesia erases old memories.

Question 18

Which of the following is a function of the limbic system?

Accepted Answer

Processing emotions and forming memories

Question 19

Which of the following best describes the function of the corpus callosum?

Accepted Answer

It connects the left and right cerebral hemispheres, allowing communication between them.

Question 20

Which of the following is a likely consequence of a lesion in the posterior association area of the cerebral cortex?

Accepted Answer

The individual may lose awareness of one side of their body.

Lecture - Ch 13 Central Nervous System

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