Question 1

Which of the following best describes the organization of gray and white matter in the adult brain compared to the spinal cord?

Accepted Answer

The brain has additional regions of gray matter within the white matter, unlike the spinal cord.

Question 2

Which structure acts as the 'gateway' to the cerebral cortex by sorting, editing, and relaying sensory information?

Accepted Answer

Thalamus

Question 3

A patient presents with loss of voluntary motor control on the right side of the body. Which region of the cerebral cortex is most likely damaged?

Accepted Answer

Left primary motor cortex

Question 4

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

Accepted Answer

Occipital lobe

Question 5

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

Accepted Answer

Control of voluntary muscle movement

Question 6

The blood-brain barrier is primarily formed by which of the following?

Accepted Answer

Astrocyte feet, endothelial tight junctions, and the basal lamina

Question 7

Which of the following best explains why alcohol can affect brain function rapidly after ingestion?

Accepted Answer

Alcohol is fat-soluble and can diffuse through the blood-brain barrier.

Question 8

Which brain region is responsible for the subconscious coordination of precise timing and patterns of skeletal muscle contraction?

Accepted Answer

Cerebellum

Question 9

A patient has difficulty regulating sleep-wake cycles and experiences disruptions in melatonin secretion. Which structure is most likely affected?

Accepted Answer

Pineal gland

Question 10

Which of the following is a function of cerebrospinal fluid (CSF)?

Accepted Answer

Provides buoyancy and protection to the brain and spinal cord

Question 11

Which of the following best describes the role of the choroid plexus?

Accepted Answer

It produces cerebrospinal fluid by filtering blood plasma.

Question 12

Which meningeal layer is described as a delicate, vascularized connective tissue that clings tightly to the brain?

Accepted Answer

Pia mater

Question 13

Which of the following statements about the cerebral hemispheres is TRUE?

Accepted Answer

The left hemisphere is dominant for language in most people.

Question 14

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

Accepted Answer

Lateral ventricles → third ventricle → fourth ventricle → central canal

Question 15

Which of the following best describes the function of the medulla oblongata?

Accepted Answer

It controls autonomic reflexes such as heart rate and breathing.

Question 16

A patient with damage to the corpus callosum would most likely experience which of the following?

Accepted Answer

Impaired communication between the two cerebral hemispheres

Question 17

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

Accepted Answer

Initiating and terminating voluntary movements

Question 18

Which of the following best explains why the brain is not crushed by its own weight?

Accepted Answer

Cerebrospinal fluid provides buoyancy to the brain.

Question 19

Which of the following is TRUE regarding the lateralization of cortical function?

Accepted Answer

The left hemisphere is specialized for language, math, and logic in most people.

Question 20

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

Accepted Answer

Producing cerebrospinal fluid

Chapter 12: The Brain – Structure, Function, and Protection

Study Guide - Practice Questions