Question 1

Which of the following best describes the primary function of the frontal lobe of the cerebral cortex?

Accepted Answer

Controlling voluntary motor activity, reasoning, and problem-solving

Question 2

A patient presents with difficulty forming new memories after a traumatic brain injury. Which region of the brain is most likely affected?

Accepted Answer

Limbic system

Question 3

Which of the following statements correctly distinguishes the endocrine system from the nervous system in maintaining homeostasis?

Accepted Answer

The nervous system uses neurotransmitters for fast, targeted responses, while the endocrine system uses hormones for slower, widespread effects.

Question 4

Which equation best represents the relationship between cerebral blood flow ($CBF$), cerebral perfusion pressure ($CPP$), and cerebrovascular resistance ($CVR$)?

Accepted Answer

$CBF = \frac{CPP}{CVR}$

Question 5

Which of the following is a function of the blood-brain barrier?

Accepted Answer

Preventing the entry of most pathogens and toxins into the brain

Question 6

A patient with damage to the basal nuclei is most likely to experience which of the following symptoms?

Accepted Answer

Difficulty initiating and controlling voluntary movements

Question 7

Which of the following best describes the flow of cerebrospinal fluid (CSF) through the central nervous system?

Accepted Answer

CSF is produced by the choroid plexus, circulates through the ventricles, and is reabsorbed into the bloodstream via arachnoid granulations.

Question 8

Which structure is responsible for relaying sensory information to the appropriate areas of the cerebral cortex?

Accepted Answer

Thalamus

Question 9

Which of the following best explains the concept of cerebral hemispheric specialization?

Accepted Answer

Certain cognitive and motor functions are predominantly controlled by one hemisphere over the other.

Question 10

A lesion in the dorsal column of the spinal cord would most likely result in which deficit?

Accepted Answer

Impaired fine touch and proprioception

Question 11

Which of the following best describes the role of the reticular formation?

Accepted Answer

Maintaining consciousness and regulating sleep-wake cycles

Question 12

Which of the following is the correct order of neurons in a sensory pathway?

Accepted Answer

First-order, second-order, third-order

Question 13

Which equation correctly represents the calculation of mean arterial pressure ($MAP$) using cardiac output ($CO$) and total peripheral resistance ($TPR$)?

Accepted Answer

$MAP = CO 	imes TPR$

Question 14

Which of the following structures is NOT part of the brainstem?

Accepted Answer

Cerebellum

Question 15

A patient with a spinal cord injury at the level of T12 would most likely experience which of the following?

Accepted Answer

Impaired function in the lower limbs

Question 16

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

Accepted Answer

Coordinating voluntary movements and maintaining balance

Question 17

Which of the following is a direct consequence of damage to the upper motor neurons?

Accepted Answer

Spastic paralysis

Question 18

Which of the following best explains how the CNS processes special sensory stimuli such as vision and hearing?

Accepted Answer

Special sensory stimuli are processed by dedicated regions of the cerebral cortex after being relayed by the thalamus.

Question 19

Which of the following best describes the overall pathway from decision to movement execution in voluntary motor control?

Accepted Answer

Decision is made in the cerebral cortex, executed by upper and lower motor neurons, and monitored by the cerebellum.

Question 20

Which of the following is the correct sequence of spaces and meninges surrounding the spinal cord from outermost to innermost?

Accepted Answer

Epidural space, dura mater, arachnoid mater, subarachnoid space, pia mater

Chapter 12: The Central Nervous System – Structure, Function, and Integration

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