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 important because:

Accepted Answer

They are the site where the corticospinal tract crosses to the opposite side

Question 5

Which of the following is TRUE regarding the blood-brain barrier?

Accepted Answer

It restricts passage of many substances from the blood into the brain

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 flow of cerebrospinal fluid (CSF) through the ventricles?

Accepted Answer

Lateral ventricles → third ventricle → cerebral aqueduct → fourth ventricle

Question 8

A patient with a lesion in the postcentral gyrus would most likely experience deficits in:

Accepted Answer

Somatosensory perception

Question 9

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

Accepted Answer

Association tracts

Question 10

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

Accepted Answer

Impaired communication between the right and left cerebral hemispheres

Question 11

Which brain wave pattern is most commonly associated with deep sleep in adults?

Accepted Answer

Delta waves

Question 12

A patient is unable to regulate their body temperature and experiences disruptions in hunger and thirst. Which brain region is most likely damaged?

Accepted Answer

Hypothalamus

Question 13

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

Accepted Answer

Acts as a relay station for sensory information

Question 14

Which lobe of the brain contains the primary visual area?

Accepted Answer

Occipital lobe

Question 15

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

Accepted Answer

Hydrocephalus due to impaired CSF flow

Question 16

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

Accepted Answer

Regulation of muscle tone

Question 17

Which structure separates the cerebrum from the cerebellum?

Accepted Answer

Tentorium cerebelli

Question 18

Which of the following cranial meninges is directly attached to the surface of the brain?

Accepted Answer

Pia mater

Question 19

A patient is unable to focus on a single conversation in a noisy room, suggesting a problem with which brain system?

Accepted Answer

Reticular activating system (RAS)

Question 20

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

Accepted Answer

Regulation of emotional responses

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

Study Guide - Practice Questions