Question 1

Which of the following best describes the function of the blood-brain barrier (BBB)?

Accepted Answer

It selectively restricts passage of certain substances from the blood into the brain, protecting neural tissue from toxins and pathogens.

Question 2

A patient presents with loss of voluntary movement on the right side of the body after a stroke. Which brain structure was most likely affected?

Accepted Answer

Left cerebral cortex due to decussation of pyramids in the medulla oblongata.

Question 3

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

Accepted Answer

Lateral ventricles $$\rightarrow$$ third ventricle $$\rightarrow$$ fourth ventricle $$\rightarrow$$ subarachnoid space

Question 4

Which brain region is primarily responsible for regulating posture, equilibrium, and balance?

Accepted Answer

Cerebellum

Question 5

A patient with damage to the Broca’s area would most likely experience which of the following symptoms?

Accepted Answer

Difficulty producing speech

Question 6

Which cranial nerve is responsible for the sense of smell?

Accepted Answer

Olfactory nerve (I)

Question 7

Which of the following structures connects the two cerebral hemispheres and allows communication between them?

Accepted Answer

Corpus callosum

Question 8

A blockage in the cerebral aqueduct would most likely lead to which condition?

Accepted Answer

Hydrocephalus

Question 9

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

Accepted Answer

Relay station for all sensory information to the cortex except smell

Question 10

Which brain structure is responsible for the startle reflex in response to loud noises?

Accepted Answer

Inferior colliculi of the midbrain

Question 11

Which of the following is NOT a function of cerebrospinal fluid (CSF)?

Accepted Answer

Providing immune defense against all pathogens

Question 12

Which of the following cranial nerves is both sensory and motor and is involved in facial expressions and taste?

Accepted Answer

Facial nerve (VII)

Question 13

Which part of the diencephalon is responsible for secreting melatonin and regulating sleep cycles?

Accepted Answer

Pineal gland

Question 14

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

Accepted Answer

Initiate and terminate movements, suppress unwanted movements, and regulate muscle tone

Question 15

A patient with a lesion in the right parietal lobe may have difficulty with which of the following?

Accepted Answer

Spatial and pattern perception

Question 16

Which of the following is a correct statement about the reticular activating system (RAS)?

Accepted Answer

It maintains consciousness and filters out insignificant sensory information.

Question 17

Which of the following arteries supplies blood to the brain’s anterior regions?

Accepted Answer

Internal carotid arteries

Question 18

Which of the following is a function of the hypothalamus?

Accepted Answer

Regulation of body temperature, hunger, thirst, and circadian rhythms

Question 19

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

Accepted Answer

Regulation of emotions, memory, and pleasure/pain responses

Question 20

Which of the following is a clinical consequence of a breakdown in the blood-brain barrier (BBB)?

Accepted Answer

Passage of normally restricted substances into brain tissue, increasing risk of infection or toxicity

Chapter 14: The Brain and Cranial Nerves - Anatomy & Physiology Study Notes

스터디 가이드 - 연습 문제