Question 1

Which of the following best describes the distribution of gray and white matter in the central nervous system (CNS)?

Accepted Answer

Gray matter forms the outer cortex of the brain and the inner core of the spinal cord, while white matter is deep in the brain and superficial in the spinal cord.

Question 2

Which structure is responsible for producing cerebrospinal fluid (CSF) in the brain?

Accepted Answer

Choroid plexus

Question 3

A patient presents with impaired voluntary movement and emotional processing. Which area of the cerebral cortex is most likely affected?

Accepted Answer

Cortical gray matter

Question 4

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

Accepted Answer

Occipital lobe

Question 5

Which of the following best explains the function of the blood-brain barrier?

Accepted Answer

It restricts passage of harmful substances while allowing essential nutrients to reach the brain.

Question 6

A lumbar puncture is performed to collect cerebrospinal fluid. Into which space is the needle inserted?

Accepted Answer

Subarachnoid space

Question 7

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

Accepted Answer

Pons

Question 8

Damage to the hippocampus would most likely result in which of the following deficits?

Accepted Answer

Impaired memory formation

Question 9

Which equation best represents the flow rate of cerebrospinal fluid (CSF) through the ventricular system, assuming constant pressure and resistance?

Accepted Answer

$$Q = \frac{P_{in} - P_{out}}{R}$$

Question 10

Which of the following is a function of the reticular activating system (RAS)?

Accepted Answer

Maintaining cerebral cortex alertness

Question 11

Which structure connects the left and right cerebral hemispheres, allowing communication between them?

Accepted Answer

Corpus callosum

Question 12

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

Accepted Answer

Regulating initiation and termination of voluntary movements

Question 13

A patient with damage to the primary motor cortex would most likely experience which symptom?

Accepted Answer

Paralysis of voluntary muscles

Question 14

Which of the following is TRUE regarding the organization of the spinal cord gray matter?

Accepted Answer

Ventral horns contain somatic motor neurons.

Question 15

Which pathway carries sensory information about touch and proprioception to the brain?

Accepted Answer

Dorsal column-medial lemniscal pathway

Question 16

Which of the following is a consequence of hydrocephalus in infants?

Accepted Answer

Enlargement of the head due to accumulation of CSF

Question 17

Which equation best describes the relationship between pressure, volume, and compliance in the cranial cavity?

Accepted Answer

$$C = \frac{\Delta V}{\Delta P}$$

Question 18

Which of the following is a function of the cerebellum?

Accepted Answer

Coordination of voluntary movements and balance

Question 19

Which meningeal layer is closest to the brain surface?

Accepted Answer

Pia mater

Question 20

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

Accepted Answer

Relays sensory impulses to cerebral cortex for interpretation

Study Notes: The Central Nervous System (Chapter 12, Marieb Human Anatomy & Physiology)

Study Guide - Practice Questions

Study Guide - Flashcards