Question 1

Which of the following best describes the primary function of the central nervous system (CNS)?

Accepted Answer

It serves as the integration and control center for the human body.

Question 2

A patient is diagnosed with a tumor in the midbrain. Which major region of the brain is affected?

Accepted Answer

Brainstem

Question 3

During embryonic development, the neural tube forms three primary brain vesicles. The caudal (inferior) end of the neural tube becomes the:

Accepted Answer

Spinal cord

Question 4

Which of the following statements about white matter in the CNS is correct?

Accepted Answer

White matter is optimized for rapid signal transmission due to myelinated axons.

Question 5

Aphasia, a condition that impairs speech, is most likely due to damage in which hemisphere of the brain for most people?

Accepted Answer

Left hemisphere

Question 6

Which lobe of the cerebrum is primarily responsible for voluntary movement, planning, and personality?

Accepted Answer

Frontal lobe

Question 7

The brain is divided into two cerebral hemispheres by which structure?

Accepted Answer

Longitudinal fissure

Question 8

Which of the following best explains why the hand occupies a larger area on the motor homunculus than the shoulder?

Accepted Answer

The hand requires more precise motor control than the shoulder.

Question 9

Which type of cerebral white matter fiber connects the left and right hemispheres of the brain?

Accepted Answer

Commissural fibers

Question 10

A patient with Parkinson’s disease is experiencing difficulty initiating and stopping movements. Which brain structure is most likely affected?

Accepted Answer

Basal nuclei (basal ganglia)

Question 11

Which of the following is a function of the parietal lobe?

Accepted Answer

Sensation of temperature, pain, and touch

Question 12

If a person can understand language but cannot physically speak, which area of the brain is most likely damaged?

Accepted Answer

Broca’s area

Question 13

Which of the following best describes the role of the prefrontal cortex?

Accepted Answer

Reasoning, planning, and personality

Question 14

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

Accepted Answer

The brain has an outer layer of gray matter (cortex) and an inner layer of white matter.

Question 15

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

Accepted Answer

Regulating the start, stop, and smoothness of voluntary movements

Question 16

Which of the following is a correct statement about the functional areas of the cerebral cortex?

Accepted Answer

Association areas are responsible for integrating and interpreting information.

Question 17

A person suffers a stroke that damages the right parietal lobe. Which of the following symptoms is most likely?

Accepted Answer

Difficulty sensing touch and spatial awareness on the left side of the body

Question 18

Which of the following best explains why spinal reflexes can still function if the motor areas of the brain are damaged?

Accepted Answer

Spinal reflexes are involuntary and do not require input from the brain’s motor areas.

Question 19

Which of the following is a real-world example of contralateral control in the brain?

Accepted Answer

The right hemisphere controls the left side of the body.

Question 20

Which of the following best describes the relationship between the size of a body part’s area on the sensory homunculus and its function?

Accepted Answer

Larger area means greater sensitivity to sensory input.

The Brain and Cranial Nerves: Structure and Function of the Cerebrum

Study Guide - Practice Questions