Question 1

Which of the following best describes the sequence of events during the generation of an action potential in a neuron?

Accepted Answer

Depolarization due to $$\mathrm{Na^+}$$ influx, repolarization due to $$\mathrm{K^+}$$ efflux, followed by hyperpolarization.

Question 2

A patient suffers a stroke that damages the left primary motor cortex. Which of the following symptoms is most likely to occur?

Accepted Answer

Paralysis or weakness on the right side of the body.

Question 3

Which of the following best explains the concept of lateralization of cortical function?

Accepted Answer

Certain cognitive functions are more dominant in one cerebral hemisphere than the other.

Question 4

Which of the following is NOT a function of the cerebellum?

Accepted Answer

Initiating voluntary muscle contractions.

Question 5

Which of the following correctly matches a brain stem region with its primary function?

Accepted Answer

Medulla oblongata – regulation of heart rate and respiration.

Question 6

Which of the following best describes the pathway of cerebrospinal fluid (CSF) circulation in the brain?

Accepted Answer

Lateral ventricles $$\rightarrow$$ third ventricle $$\rightarrow$$ cerebral aqueduct $$\rightarrow$$ fourth ventricle $$\rightarrow$$ subarachnoid space.

Question 7

A patient with a tumor compressing the hypothalamus is most likely to experience which of the following symptoms?

Accepted Answer

Disrupted body temperature regulation and hormonal imbalances.

Question 8

Which of the following statements about the blood-brain barrier is correct?

Accepted Answer

It restricts passage of many substances from the blood into the brain, protecting neural tissue from toxins.

Question 9

Which of the following is a correct pairing of a cerebral lobe and its primary function?

Accepted Answer

Occipital lobe – processing visual information.

Question 10

Which of the following best describes the formation of cerebrospinal fluid (CSF)?

Accepted Answer

CSF is produced by the choroid plexuses in the ventricles of the brain.

Question 11

A patient presents with loss of sensation in the left hand. Damage to which area of the brain is most likely responsible?

Accepted Answer

Right somatosensory cortex.

Question 12

Which of the following is NOT a function of the thalamus?

Accepted Answer

Regulation of body temperature.

Question 13

Which of the following best describes the structural divisions of the nervous system?

Accepted Answer

Central nervous system (CNS) and peripheral nervous system (PNS).

Question 14

Which fissure separates the two cerebral hemispheres?

Accepted Answer

Longitudinal fissure.

Question 15

Which of the following is the correct order of the major regions of the adult brain from superior to inferior?

Accepted Answer

Cerebrum, diencephalon, brain stem, cerebellum.

Question 16

A patient with bacterial meningitis has inflammation of which structure(s)?

Accepted Answer

The meninges surrounding the brain and spinal cord.

Question 17

Which of the following best explains the homunculus in the primary motor and somatosensory cortices?

Accepted Answer

It is a body map showing the relative amount of cortex devoted to each body region.

Question 18

Which of the following is a function of the midbrain?

Accepted Answer

Visual and auditory reflexes.

Question 19

Which ventricle is located in the diencephalon?

Accepted Answer

Third ventricle.

Question 20

Which of the following best describes how the meninges, cerebrospinal fluid, and blood-brain barrier protect the central nervous system?

Accepted Answer

They provide physical protection, cushioning, and chemical stability for neural tissue.

Nervous System and Central Nervous System: Study Guide (Chapters 11 & 12a)

Study Guide - Practice Questions

Study Guide - Flashcards