$$\text{Left Hemisphere} \rightarrow \text{Right Side of Body}$$

$$\text{Surface Area} = \text{Number of Gyri} \times \text{Average Gyrus Area}$$

Question 1

Which of the following statements best describes the organization of gray and white matter in the spinal cord?

Accepted Answer

Gray matter forms a central core surrounded by an external layer of white matter.

Question 2

A patient suffers a stroke that damages the primary somatosensory cortex. Which deficit would you expect?

Accepted Answer

Loss of conscious awareness of general sensations and spatial discrimination.

Question 3

Which lobe of the cerebrum is primarily responsible for voluntary motor control?

Accepted Answer

Frontal lobe

Question 4

Damage to the visual association area would most likely result in which of the following?

Accepted Answer

Inability to interpret visual stimuli such as color, form, and movement

Question 5

Which structure is NOT part of the diencephalon?

Accepted Answer

Pons

Question 6

A patient can feel an object in their hand but cannot identify it by touch alone. Which cortical area is most likely damaged?

Accepted Answer

Somatosensory association cortex

Question 7

Which of the following best describes the function of the multimodal association areas?

Accepted Answer

They integrate input from multiple senses, store memory, and link it to previous experiences.

Question 8

Which equation best represents the contralateral control of the cerebral hemispheres?

Accepted Answer

$$	ext{Left Hemisphere} ightarrow 	ext{Right Side of Body}$$

Question 9

Which area of the brain is most closely associated with abstract intellectual functions such as judgment, planning, and reasoning?

Accepted Answer

Prefrontal cortex (anterior association area)

Question 10

A lesion in Wernicke's area would most likely result in which of the following symptoms?

Accepted Answer

Impaired comprehension and interpretation of language

Question 11

Which of the following is TRUE regarding the flow of information through cortical areas?

Accepted Answer

Sensory association areas process information before it reaches multimodal association areas.

Question 12

Which equation best represents the relationship between the number of gyri and the surface area of the cerebral cortex?

Accepted Answer

$$	ext{Surface Area} = 	ext{Number of Gyri} 	imes 	ext{Average Gyrus Area}$$

Question 13

Which of the following is a function of the limbic association area?

Accepted Answer

Producing emotional responses and linking them to memories

Question 14

Which ventricle is located between the two halves of the diencephalon?

Accepted Answer

Third ventricle

Question 15

A patient with a lesion in the posterior association area may exhibit which of the following behaviors?

Accepted Answer

Refusal to wash or dress one side of their body

Question 16

Which equation best represents the integration of sensory input in multimodal association areas?

Accepted Answer

$$	ext{Perception} = \sum_{i=1}^{n} 	ext{Sensory Input}_i$$

Question 17

Which area of the brain is responsible for the perception of equilibrium and balance?

Accepted Answer

Vestibular cortex (insula)

Question 18

Which of the following best describes the role of Broca's area?

Accepted Answer

Directs muscles of the tongue for speech production

Question 19

Which equation best represents the relationship between the number of functional areas and the complexity of conscious behavior?

Accepted Answer

$$	ext{Complexity} \propto 	ext{Number of Functional Areas}$$

Chapter 12: The Central Nervous System (CNS) – Structure and Functional Organization

Study Guide - Practice Questions