Question 1

Which of the following structures is derived from the mesencephalon during embryonic development?

Accepted Answer

Midbrain

Question 2

A patient presents with difficulty in voluntary eye movement and speech production. Which two areas of the cerebral cortex are most likely affected?

Accepted Answer

Broca's area and frontal eye field

Question 3

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

Accepted Answer

Regulation of slow or interrupted movements and inhibition of unnecessary movement

Question 4

The blood-brain barrier is primarily formed by which of the following cellular structures?

Accepted Answer

Astrocytes and tight junctions of endothelial cells

Question 5

Which equation best represents the relationship between cerebrospinal fluid (CSF) pressure ($$P_{CSF}$$), volume ($$V_{CSF}$$), and compliance ($$C) in $$the cranial cavity?

Accepted Answer

$$C = \frac{V_{CSF}}{P_{CSF}}$$

Question 6

Damage to the precentral gyrus would most likely result in which of the following deficits?

Accepted Answer

Impaired voluntary motor control

Question 7

Which of the following statements about the thalamus is correct?

Accepted Answer

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

Question 8

A lesion in the left hemisphere affecting Broca's area would most likely cause which clinical symptom?

Accepted Answer

Difficulty in producing speech

Question 9

Which of the following best explains the role of the hypothalamus in homeostasis?

Accepted Answer

It controls endocrine functions, body temperature, hunger, and thirst

Question 10

If the reticular activating system (RAS) is damaged, which of the following symptoms is most likely to occur?

Accepted Answer

Coma or loss of consciousness

Question 11

Which of the following is a function of the cerebellum?

Accepted Answer

Coordination of voluntary muscle contractions and maintenance of balance

Question 12

Which of the following best describes the function of the choroid plexus?

Accepted Answer

Production of cerebrospinal fluid (CSF)

Question 13

A patient with a tumor compressing the pineal gland and the suprachiasmatic nucleus may experience disruption in which physiological process?

Accepted Answer

Sleep-wake cycle and circadian rhythms

Question 14

Which of the following is true regarding the organization of gray matter in the spinal cord?

Accepted Answer

Gray matter consists of neuron cell bodies, unmyelinated processes, and neuroglia

Question 15

Which equation correctly represents the calculation of the total volume of cerebrospinal fluid ($$V_{total}) if $$the rate of CSF production ($$R) $$and the time ($$t) $$are known?

Accepted Answer

$$V_{total} = R 	imes t$$

Question 16

Which of the following best describes the function of the limbic system?

Accepted Answer

Processing of emotions, memory, and motivation

Question 17

Which of the following structures is responsible for separating the cerebral hemispheres?

Accepted Answer

Longitudinal fissure

Question 18

A patient with damage to the postcentral gyrus would most likely experience deficits in which function?

Accepted Answer

Somatosensory perception

Question 19

Which of the following is a function of the meninges?

Accepted Answer

Protection of the CNS and formation of partitions within the skull

Question 20

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

Accepted Answer

Maintenance of consciousness and alertness

Central Nervous System: Structure and Function

Study Guide - Practice Questions

Study Guide - Flashcards