Question 1

Which of the following structures is NOT included in the central nervous system (CNS)?

Accepted Answer

Peripheral nerves

Question 2

The meninges protect the CNS. Which of the following correctly lists the meninges from superficial to deep?

Accepted Answer

Dura mater, arachnoid mater, pia mater

Question 3

Which of the following is a primary function of cerebrospinal fluid (CSF)?

Accepted Answer

Protecting the brain and spinal cord from trauma

Question 4

In the spinal cord, which color typically represents sensory (ascending) tracts?

Accepted Answer

Blue

Question 5

A tract named 'spinothalamic' most likely carries which type of information?

Accepted Answer

Sensory information from the spinal cord to the thalamus

Question 6

Where does the corticospinal tract originate and terminate?

Accepted Answer

Originates in the cortex and terminates in the spinal cord

Question 7

Which anatomical landmark separates the primary motor cortex from the primary somatosensory cortex?

Accepted Answer

Central sulcus

Question 8

If a herniated intervertebral disc pinches a dorsal root, what symptoms would you expect?

Accepted Answer

Sensory impairment only

Question 9

Which of the following is TRUE about the decussation of pyramids in the medulla oblongata?

Accepted Answer

It allows motor information to cross from one side of the brain to the opposite side of the body.

Question 10

Which brain region is primarily responsible for coordination and balance?

Accepted Answer

Cerebellum

Question 11

A pathway from the thalamus to the occipital lobe of the cerebral cortex most likely carries which type of sensory information?

Accepted Answer

Visual

Question 12

Which of the following best describes association fibers in the cerebrum?

Accepted Answer

Fibers connecting different regions within the same hemisphere

Question 13

Damage to the precentral gyrus would most likely result in:

Accepted Answer

Impaired voluntary motor control

Question 14

Which of the following equations correctly represents the relationship between CSF pressure, volume, and compliance in the cranial cavity?

Accepted Answer

$$P_{CSF} = \frac{V_{CSF}}{C_{cranial}}$$

Question 15

If neurons in the left precentral gyrus are highly active, which side of the body is most likely being affected?

Accepted Answer

Right side

Question 16

Which of the following is a plausible advantage of spinal taps over epidurals?

Accepted Answer

Spinal taps allow for direct sampling of CSF for diagnostic purposes

Question 17

Which structure is most lateral among the caudate nucleus head, globus pallidus, and putamen?

Accepted Answer

Putamen

Question 18

A pathway represented by arrow A, running from the thalamus to the postcentral gyrus, would most likely be involved in:

Accepted Answer

Somatosensory processing

Question 19

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

Accepted Answer

Connects the two cerebral hemispheres

Question 20

Which of the following is TRUE regarding the functional specialization theory of brain function?

Accepted Answer

Each brain region performs a unique, specialized function

Central Nervous System (CNS) and Its Protection: Key Concepts and Structures

Study Guide - Practice Questions