Question 1

Which of the following structures is responsible for reabsorbing cerebrospinal fluid (CSF) into the venous circulation?

Accepted Answer

Arachnoid villi

Question 2

A patient presents with loss of balance and poor coordination. Which brain structure is most likely affected?

Accepted Answer

Cerebellum

Question 3

Which of the following best describes the function of the reticular activating system (RAS)?

Accepted Answer

Maintains consciousness and filters sensory input

Question 4

The pyramids of the medulla oblongata are primarily associated with which of the following functions?

Accepted Answer

Crossing of corticospinal tracts

Question 5

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

Accepted Answer

Lateral ventricles → third ventricle → cerebral aqueduct → fourth ventricle

Question 6

A stroke affecting the internal carotid arteries would most directly compromise blood supply to which region of the brain?

Accepted Answer

Anterior regions of the brain

Question 7

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

Accepted Answer

Relay station for sensory information

Question 8

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

Accepted Answer

Impaired communication between the right and left cerebral hemispheres

Question 9

Which brain wave pattern is most commonly observed in an adult during deep sleep, and what does its presence while awake indicate?

Accepted Answer

Delta waves; possible brain damage

Question 10

A patient is unable to taste food but has normal hearing and vision. Which area of the brain is most likely damaged?

Accepted Answer

Area inferior to the somatosensory cortex

Question 11

Which of the following tracts connects gyri within the same cerebral hemisphere?

Accepted Answer

Association tracts

Question 12

A patient with a lesion in the hypothalamus would most likely experience which of the following symptoms?

Accepted Answer

Dysregulation of the autonomic nervous system

Question 13

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

Accepted Answer

Regulation of muscle tone

Question 14

A patient is unable to move the left side of their body after a brain injury. Which area is most likely damaged?

Accepted Answer

Right precentral gyrus

Question 15

Which of the following is TRUE regarding the meninges of the brain?

Accepted Answer

The pia mater adheres directly to the surface of the brain

Question 16

Which structure separates the cerebellum from the cerebrum?

Accepted Answer

Tentorium cerebelli

Question 17

Which of the following cranial nerves originate from the medulla oblongata?

Accepted Answer

Cranial nerves VIII-XII

Question 18

Which brain region contains the superior and inferior colliculi, and what is their primary function?

Accepted Answer

Midbrain; visual and auditory reflexes

Question 19

Which lobe of the brain contains the primary visual cortex?

Accepted Answer

Occipital lobe

Question 20

A patient is unable to focus on a single conversation in a noisy room. Which brain system is most likely impaired?

Accepted Answer

Reticular activating system (RAS)

Chapter 12: The Central Nervous System – Brain Structure and Function

Study Guide - Practice Questions