Question 1

Which of the following best describes the primary function of the thalamus in the central nervous system?

Accepted Answer

It acts as the main entry route of sensory data into the cerebral cortex, integrating and relaying information.

Question 2

A patient presents with difficulty initiating voluntary movements and a shuffling gait. Which brain structure is most likely affected?

Accepted Answer

Basal nuclei

Question 3

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

Accepted Answer

Occipital lobe

Question 4

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

Accepted Answer

Inability to produce grammatically correct speech

Question 5

Which of the following best explains why the brain requires about 20% of the body’s total blood flow at rest?

Accepted Answer

Neurons in the brain have high metabolic demands for oxygen and glucose.

Question 6

Which of the following is a function of the hypothalamus?

Accepted Answer

Regulating body temperature and hunger

Question 7

A patient with a lesion in the right parietal association cortex is most likely to experience which deficit?

Accepted Answer

Loss of spatial awareness and attention

Question 8

Which of the following statements about the blood-brain barrier is correct?

Accepted Answer

It is formed by tight junctions between endothelial cells and astrocytes.

Question 9

Which pathway is responsible for transmitting pain and temperature sensations from the body to the brain?

Accepted Answer

Anterolateral (spinothalamic) system

Question 10

Which of the following best describes the role of the cerebellum in voluntary movement?

Accepted Answer

It monitors ongoing movements and corrects motor errors to produce smooth, coordinated motion.

Question 11

A patient is unable to feel pain or temperature on the left side of their body after a spinal cord injury. Which tract is most likely damaged?

Accepted Answer

Right spinothalamic tract

Question 12

Which of the following is a correct sequence for the flow of cerebrospinal fluid (CSF) through the brain?

Accepted Answer

Lateral ventricles → third ventricle → cerebral aqueduct → fourth ventricle → subarachnoid space

Question 13

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

Accepted Answer

Integration of memory, learning, emotion, and behavior

Question 14

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

Accepted Answer

White matter is superficial in the spinal cord but deep in the brain.

Question 15

Which of the following is a function of the reticular formation?

Accepted Answer

Regulation of respiration, blood pressure, and sleep/wake cycle

Question 16

Which of the following best explains the placebo effect in pain perception?

Accepted Answer

Placebos increase the release of endorphins in the brain, decreasing the perception of pain.

Question 17

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

Accepted Answer

First-order neuron → second-order neuron → third-order neuron

Question 18

Which of the following is a real-life example of the function of the prefrontal cortex?

Accepted Answer

Planning and executing a complex behavior, such as organizing a group project

Question 19

Which of the following best describes the function of the corpus callosum?

Accepted Answer

It connects the right and left cerebral hemispheres, allowing communication between them.

Question 20

Which of the following is a function of the basal nuclei?

Accepted Answer

Inhibiting inappropriate movements and facilitating voluntary movement

The Central Nervous System: Structure, Function, and Integration

Study Guide - Practice Questions