Question 1

Which of the following best describes the function of the thalamus in the brain?

Accepted Answer

It acts as the main relay station for sensory information traveling to the cerebral cortex.

Question 2

A patient suffers a stroke that damages the precentral gyrus of the frontal lobe. Which deficit is most likely to occur?

Accepted Answer

Loss of voluntary motor control on the contralateral side of the body.

Question 3

Which structure is primarily responsible for the production of cerebrospinal fluid (CSF)?

Accepted Answer

Choroid plexus

Question 4

If the dorsal root of a spinal nerve is damaged, which function is most likely to be impaired?

Accepted Answer

Transmission of sensory information to the central nervous system

Question 5

Which of the following best describes the location of the cell bodies of sensory neurons in the spinal cord?

Accepted Answer

Dorsal root ganglia

Question 6

A patient presents with loss of pain and temperature sensation on the right side of the body below the waist. Which spinal cord tract is most likely damaged?

Accepted Answer

Left lateral spinothalamic tract

Question 7

Which of the following is a function of the hypothalamus?

Accepted Answer

Regulation of body temperature and hunger

Question 8

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

Accepted Answer

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

Question 9

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

Accepted Answer

Gray matter is located centrally, surrounded by white matter.

Question 10

A lesion in the ventral horn of the spinal cord would most likely result in which of the following?

Accepted Answer

Loss of voluntary motor function at the level of the lesion

Question 11

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

Accepted Answer

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

Question 12

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

Accepted Answer

Cerebellum

Question 13

Which of the following best describes the function of the dorsal columns in the spinal cord?

Accepted Answer

They transmit fine touch and proprioceptive information to the brain.

Question 14

A patient with a tumor compressing the cerebral aqueduct would most likely develop which condition?

Accepted Answer

Hydrocephalus due to impaired CSF flow

Question 15

Which of the following is the correct equation for calculating the volume of cerebrospinal fluid produced per day if the rate of production is $$0.35\ 	ext{mL/min}$$?

Accepted Answer

$$0.35\ 	ext{mL/min} 	imes 60\ 	ext{min/hr} 	imes 24\ 	ext{hr/day} = 504\ 	ext{mL/day}$$

Question 16

Which of the following best explains why damage to the left primary motor cortex results in paralysis on the right side of the body?

Accepted Answer

Motor fibers decussate (cross) in the medulla, so each hemisphere controls the opposite side.

Question 17

Which of the following is a direct consequence of blocking the reabsorption of cerebrospinal fluid at the arachnoid granulations?

Accepted Answer

Increased intracranial pressure

Question 18

Which of the following best describes the function of the ventral roots of the spinal cord?

Accepted Answer

They carry motor commands from the spinal cord to the muscles.

Question 19

A patient is unable to feel vibration or proprioception in their left leg but can still feel pain and temperature. Which spinal cord tract is most likely damaged?

Accepted Answer

Left dorsal column

Question 20

Which of the following best describes the arrangement of neuron cell bodies and axons in the spinal cord?

Accepted Answer

Neuron cell bodies are located in the gray matter, while axons are found in the white matter.

Chapter 12: The Central Nervous System – Study Guide and Learning Objectives

Study Guide - Practice Questions

Study Guide - Flashcards