Q: Which of the following equations best represents the relationship between the volume of cerebrospinal fluid ($$V_{CSF}$$), the rate of production ($$R_{prod}$$), and the rate of absorption ($$R_{abs}) $$over time ($$t$$)?

$$V_{CSF} = R_{prod} \times t - R_{abs} \times t$$

Question 1

Which structure is primarily responsible for maintaining homeostasis, including regulation of temperature, hunger, and hormone release?

Accepted Answer

Hypothalamus

Question 2

A patient suffers a stroke affecting the precentral gyrus. Which function is most likely to be impaired?

Accepted Answer

Voluntary movement

Question 3

Which of the following best describes the difference in the arrangement of gray and white matter in the brain versus the spinal cord?

Accepted Answer

In the brain, gray matter is outer and white matter is inner; in the spinal cord, gray matter is inner and white matter is outer

Question 4

Damage to the Broca’s area would most likely result in which of the following deficits?

Accepted Answer

Impaired speech production

Question 5

Which brain region acts as a relay station for most sensory information before it reaches the cerebral cortex?

Accepted Answer

Thalamus

Question 6

A person with damage to the right cerebral hemisphere is most likely to experience deficits in which of the following?

Accepted Answer

Spatial ability and creativity

Question 7

Which structure connects the left and right cerebral hemispheres, allowing communication between them?

Accepted Answer

Corpus callosum

Question 8

If the choroid plexus is damaged, which of the following would most likely be affected?

Accepted Answer

Production of cerebrospinal fluid (CSF)

Question 9

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

Accepted Answer

Coordination of movement and balance

Question 10

A patient is unable to maintain alertness and consciousness. Which structure is most likely affected?

Accepted Answer

Reticular formation

Question 11

Which of the following equations best represents the relationship between the volume of cerebrospinal fluid ($$V_{CSF}$$), the rate of production ($$R_{prod}$$), and the rate of absorption ($$R_{abs}) $$over time ($$t$$)?

Accepted Answer

$$V_{CSF} = R_{prod} 	imes t - R_{abs} 	imes t$$

Question 12

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

Accepted Answer

Occipital lobe

Question 13

A lesion in the postcentral gyrus would most likely result in which of the following?

Accepted Answer

Loss of somatic sensory perception

Question 14

Which of the following best describes the function of the basal nuclei?

Accepted Answer

Motor control and regulation of movement

Question 15

Which of the following is NOT a function of the cerebral cortex?

Accepted Answer

Regulation of heart rate

Question 16

Which equation best represents the decussation of motor pathways, where $$M_{left}$$ and $$M_{right}$$ are motor signals to the left and right sides of the body, and $$C_{contralateral} is $$the contralateral control?

Accepted Answer

$$M_{left} = C_{contralateral}(right)$$; $$M_{right} = C_{contralateral}(left)$$

Question 17

Which of the following structures is most involved in emotion and memory formation?

Accepted Answer

Limbic system

Question 18

Which type of brain wave is most likely to be observed in a person who is awake and alert, as measured by EEG?

Accepted Answer

Beta waves

Question 19

A spinal cord injury at the level of L1/L2 would most likely affect which of the following?

Accepted Answer

Communication and reflexes below the injury

Question 20

Which of the following best describes the pathway of sensory information in the spinal cord?

Accepted Answer

Ascending pathway through dorsal horns

ch 12.Central Nervous System: Structure and Function

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